diff src/video/photon/SDL_ph_video.c @ 571:8e3ce997621c

Date: Thu, 16 Jan 2003 13:48:31 +0200 From: "Mike Gorchak" Subject: All QNX patches whole patches concerning QNX. Almost all code has been rewritten by Julian and me. Added initial support for hw overlays in QNX and many many others fixes. P.S. This patches has been reviewed by Dave Rempel from QSSL and included in SDL 1.2.5 distribution, which coming on 3rd party CD for newest 6.2.1 version of QNX, which will be available soon.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 20 Jan 2003 01:38:37 +0000
parents bce7171e7a85
children 8bedd6d61642
line wrap: on
line diff
--- a/src/video/photon/SDL_ph_video.c	Mon Jan 20 01:37:07 2003 +0000
+++ b/src/video/photon/SDL_ph_video.c	Mon Jan 20 01:38:37 2003 +0000
@@ -56,6 +56,7 @@
 static int ph_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
 static void ph_VideoQuit(_THIS);
 static void ph_DeleteDevice(SDL_VideoDevice *device);
+static void ph_UpdateMouse(_THIS);
 
 #ifdef HAVE_OPENGL
 int ph_SetupOpenGLContext(_THIS, int width, int height, int bpp, Uint32 flags);
@@ -90,7 +91,7 @@
                 malloc((sizeof *device->hidden));
         device->gl_data = NULL;
     }
-    if ( (device == NULL) || (device->hidden == NULL) ) {
+    if ((device == NULL) || (device->hidden == NULL)) {
         SDL_OutOfMemory();
         ph_DeleteDevice(device);
         return(0);
@@ -106,9 +107,9 @@
     device->ListModes = ph_ListModes;
     device->SetVideoMode = ph_SetVideoMode;
     device->ToggleFullScreen = ph_ToggleFullScreen;
-    device->UpdateMouse = NULL;	
+    device->UpdateMouse = ph_UpdateMouse;
     device->SetColors = ph_SetColors;
-    device->UpdateRects = NULL;         /* ph_ResizeImage */
+    device->UpdateRects = NULL;         /* ph_SetupUpdateFunction */
     device->VideoQuit = ph_VideoQuit;
     device->AllocHWSurface = ph_AllocHWSurface;
     device->CheckHWBlit = NULL;
@@ -173,6 +174,72 @@
     }
 }
 
+static PtWidget_t *ph_CreateWindow(_THIS)
+{
+    PtWidget_t *widget;
+    
+    widget = PtCreateWidget(PtWindow, NULL, 0, 0);
+    if (widget == NULL)
+    {
+        SDL_SetError("Couldn't create video window");
+    }
+
+    return widget;
+}
+
+static int ph_SetupWindow(_THIS, int w, int h, int flags)
+{
+    PtArg_t     args[32];
+    PhPoint_t   pos = {0, 0};
+    PhDim_t     dim = {w, h};
+    int         nargs = 0;
+
+    PtSetArg(&args[nargs++], Pt_ARG_DIM, &dim, 0);
+    PtSetArg(&args[nargs++], Pt_ARG_FILL_COLOR, Pg_BLACK, 0);
+
+    if ((flags & SDL_RESIZABLE) == SDL_RESIZABLE)
+    {
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_FALSE, Ph_WM_RESIZE | Ph_WM_MAX);
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_NOTIFY_FLAGS, Pt_TRUE, Ph_WM_RESIZE | Ph_WM_MAX);
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_TRUE, Ph_WM_RENDER_RESIZE | Ph_WM_RENDER_MAX);
+    }
+    else
+    {
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_FALSE, Ph_WM_RESIZE | Ph_WM_MAX);
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_NOTIFY_FLAGS, Pt_FALSE, Ph_WM_RESIZE | Ph_WM_MAX);
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_FALSE, Ph_WM_RENDER_RESIZE | Ph_WM_RENDER_MAX | Ph_WM_RENDER_COLLAPSE);
+    }
+
+    if (((flags & SDL_NOFRAME)==SDL_NOFRAME) || ((flags & SDL_FULLSCREEN)==SDL_FULLSCREEN))
+    {
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_FALSE, Pt_TRUE);
+    }
+    else
+    {
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_TRUE, Ph_WM_RENDER_BORDER | Ph_WM_RENDER_TITLE |
+                                  Ph_WM_RENDER_CLOSE | Ph_WM_RENDER_MENU | Ph_WM_RENDER_MIN);
+    }
+
+    if (flags & SDL_FULLSCREEN)
+    {
+        PtSetArg(&args[nargs++], Pt_ARG_POS, &pos, 0);
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_TRUE, Ph_WM_FFRONT | Ph_WM_MAX);
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_STATE, Pt_TRUE, Ph_WM_STATE_ISFRONT | Ph_WM_STATE_ISMAX |
+                                                               Ph_WM_STATE_ISFOCUS | Ph_WM_STATE_ISALTKEY);
+    }
+    else
+    {
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_STATE, Pt_FALSE, Ph_WM_STATE_ISFRONT | Ph_WM_STATE_ISMAX | Ph_WM_STATE_ISALTKEY);
+        PtSetArg(&args[nargs++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_TRUE, Ph_WM_HIDE);
+        PtSetArg(&args[nargs++], Pt_ARG_RESIZE_FLAGS, Pt_FALSE, Pt_RESIZE_XY_AS_REQUIRED);
+    }
+
+    PtSetResources(window, nargs, args);
+    PtRealizeWidget(window);
+
+    return 0;
+}
+
 static int ph_VideoInit(_THIS, SDL_PixelFormat *vformat)
 {
     PgVideoModeInfo_t my_mode_info;
@@ -184,16 +251,22 @@
     oglctx=NULL;
 #endif /* HAVE_OPENGL */
     
-    captionflag=0;
     old_video_mode=-1;
     old_refresh_rate=-1;
 	
     if (NULL == (event = malloc(EVENT_SIZE)))
     {
-        exit(EXIT_FAILURE);
+        SDL_OutOfMemory();
+        return -1;
     }
     memset(event, 0x00, EVENT_SIZE);
 
+    window = ph_CreateWindow(this);
+    if (window == NULL)
+    {
+        return -1;
+    }
+
     /* Create the blank cursor */
     SDL_BlankCursor = this->CreateWMCursor(this, blank_cdata, blank_cmask,
                                           (int)BLANK_CWIDTH, (int)BLANK_CHEIGHT,
@@ -201,7 +274,7 @@
 
     if (SDL_BlankCursor == NULL)
     {
-        printf("ph_VideoInit(): could not create blank cursor !\n");
+        fprintf(stderr, "ph_VideoInit(): could not create blank cursor !\n");
     }
 
     if (PgGetGraphicsHWCaps(&my_hwcaps) < 0)
@@ -222,7 +295,8 @@
     /* save current palette */
     if (desktopbpp==8)
     {
-        PgGetPalette(ph_palette);
+        PgGetPalette(savedpal);
+        PgGetPalette(syspalph);
     }
          
     currently_fullscreen = 0;
@@ -236,110 +310,46 @@
                 int width, int height, int bpp, Uint32 flags)
 {
     PgDisplaySettings_t settings;
+    SDL_Color* colors;
     int mode;
-    PtArg_t arg[32];
-    PhDim_t dim;
     int rtnval;
     int i;
-    unsigned long *tempptr;
-    int pargc;
-
-    dim.w=width;
-    dim.h=height;
 
     /* Lock the event thread, in multi-threading environments */
     SDL_Lock_EventThread();
 
     current->flags = flags;
 
-    /* create window if no OpenGL support selected */
-    if ((flags & SDL_OPENGL)!=SDL_OPENGL)
-    {
-        pargc=0;
-        
-        // prevent using HWSURFACE in window mode if desktop bpp != chosen bpp
-        if ((flags & SDL_HWSURFACE) && (!(flags & SDL_FULLSCREEN)))
-        {
-           if (desktopbpp!=bpp)
-           {
-              fprintf(stderr, "ph_SetVideoMode(): SDL_HWSURFACE available only with chosen bpp equal desktop bpp !\n");
-              return NULL;
-           }
-        }
-
-        PtSetArg(&arg[pargc++], Pt_ARG_DIM, &dim, 0);
-        PtSetArg(&arg[pargc++], Pt_ARG_RESIZE_FLAGS, Pt_FALSE, Pt_RESIZE_XY_AS_REQUIRED);
-
-        /* enable window minimizing */
-        PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_TRUE, Ph_WM_HIDE);
-
-        /* remove border and caption if no frame flag selected */
-        if ((flags & SDL_NOFRAME) == SDL_NOFRAME)
-        {
-            PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_FALSE, Ph_WM_RENDER_TITLE | Ph_WM_RENDER_BORDER);
-        }
-        else
-        {
-            PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_TRUE, Ph_WM_RENDER_TITLE | Ph_WM_RENDER_BORDER);
-        }
-
-        /* if window is not resizable then remove resize handles and maximize button */
-        if ((flags & SDL_RESIZABLE) != SDL_RESIZABLE)
-        {
-            PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_FALSE, Ph_WM_RENDER_RESIZE | Ph_WM_RENDER_MAX);
-            PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_FALSE, Ph_WM_RESIZE | Ph_WM_MAX);
-            PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_NOTIFY_FLAGS, Pt_FALSE, Ph_WM_RESIZE | Ph_WM_MAX);
-        }
-        else
-        {
-            PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_TRUE, Ph_WM_RENDER_RESIZE | Ph_WM_RENDER_MAX);
-            /* it is need to be Pt_FALSE to allow the application to process the resize callback */
-            PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_FALSE, Ph_WM_RESIZE | Ph_WM_MAX);
-            PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_NOTIFY_FLAGS, Pt_TRUE, Ph_WM_RESIZE | Ph_WM_MAX);
-        }
-
-        if (window!=NULL)
-        {
-            PtUnrealizeWidget(window);
-            PtDestroyWidget(window);
-            window=NULL;
-        }
-
-        window=PtCreateWidget(PtWindow, NULL, pargc, arg);
-        PtRealizeWidget(window);
-        
-        PtFlush();
-    }
+    ph_SetupWindow(this, width, height, flags);
 
 #ifdef HAVE_OPENGL
-    if (flags & SDL_OPENGL)
+    if (current->flags & SDL_OPENGL)
     {
         /* ph_SetupOpenGLContext creates also window as need */
         if (ph_SetupOpenGLContext(this, width, height, bpp, flags)==0)
         {
-            /* setup OGL update function ... ugly method */
-            ph_ResizeImage(this, current, flags); 
+            ph_SetupUpdateFunction(this, current, flags); 
         }
         else
         {
             /* if context creation fail, report no OpenGL to high level */
-            current->flags=(flags & (~SDL_OPENGL));
+            current->flags &= ~SDL_OPENGL;
         }
 #else
-    if (flags & SDL_OPENGL) /* if no built-in OpenGL support */
+    if (current->flags & SDL_OPENGL) /* if no built-in OpenGL support */
     {
         fprintf(stderr, "ph_SetVideoMode(): no OpenGL support, try to recompile library.\n");
-        current->flags=(flags & (~SDL_OPENGL));
+        current->flags &= ~SDL_OPENGL;
         return NULL;
 #endif /* HAVE_OPENGL */
     }
     else
     {
         /* Initialize the window */
-        if (flags & SDL_FULLSCREEN) /* Direct Context , assume SDL_HWSURFACE also set */
+        if (current->flags & SDL_FULLSCREEN) /* Direct Context , assume SDL_HWSURFACE also set */
         {
             /* Get the video mode and set it */
-            if (flags & SDL_ANYFORMAT)
+            if (current->flags & SDL_ANYFORMAT)
             {
                 if ((mode = get_mode_any_format(width, height, bpp)) == 0)
                 {
@@ -376,7 +386,8 @@
                 fprintf(stderr,"ph_SetVideoMode(): PgSetVideoMode failed !\n");
             }
 
-            current->flags = (flags & (~SDL_RESIZABLE)); /* no resize for Direct Context */
+            current->flags &= ~SDL_RESIZABLE; /* no resize for Direct Context */
+            current->flags |= SDL_HWSURFACE;
 
             /* Begin direct mode */
             ph_EnterFullScreen(this);
@@ -385,10 +396,10 @@
         else
         {
             /* Use offscreen memory iff SDL_HWSURFACE flag is set */
-            if (flags & SDL_HWSURFACE)
+            if (current->flags & SDL_HWSURFACE)
             {
                 /* no stretch blit in offscreen context */
-                current->flags = (flags & (~SDL_RESIZABLE));
+                current->flags &= ~SDL_RESIZABLE;
             }
 
             /* using palette emulation code in window mode */
@@ -402,55 +413,48 @@
                 {
                     desktoppal=SDLPH_PAL_SYSTEM;
                 }
+
+                /* fill the palette */
+                PgGetPalette(savedpal);
+                PgGetPalette(syspalph);
+
+                current->format->palette = calloc(1, sizeof(SDL_Palette));
+                current->format->palette->ncolors = _Pg_MAX_PALETTE;
+                current->format->palette->colors = (SDL_Color *)calloc(_Pg_MAX_PALETTE, sizeof(SDL_Color));
+
+                colors = current->format->palette->colors;
+
+                for(i=0; i<256; i++)
+                {
+                    colors[i].r = PgRedValue(syspalph[i]);
+                    colors[i].g = PgGreenValue(syspalph[i]);
+                    colors[i].b = PgBlueValue(syspalph[i]);
+                }
             }
             else
             {
                desktoppal=SDLPH_PAL_NONE;
             }
         }
-
-	/* If we are setting video to use the palette make sure we have allocated memory for it */
-	if (bpp==8)
-	{
-            current->format->palette = malloc(sizeof(SDL_Palette));
-            memset(current->format->palette, 0, sizeof(SDL_Palette));
-            current->format->palette->ncolors = 256;
-            current->format->palette->colors = (SDL_Color *)malloc(256 *sizeof(SDL_Color));
-            /* fill the palette */
-            rtnval = PgGetPalette(ph_palette);
-
-            tempptr = (unsigned long *)current->format->palette->colors;
-
-            for(i=0; i<256; i++)
-            {
-                *tempptr = (((unsigned long)ph_palette[i]) << 8);
-                tempptr++;
-            }
-        }
-
     }
 
     current->w = width;
     current->h = height;
+
+    /* These values can be overridden in ph_SetupUpdateFunction() */
     current->format->BitsPerPixel = bpp;
     current->format->BytesPerPixel = (bpp+7)/8;
     current->pitch = SDL_CalculatePitch(current);
 
     /* Must call at least once it setup image planes */
-    rtnval = ph_ResizeImage(this, current, flags);
+    rtnval = ph_SetupUpdateFunction(this, current, current->flags);
     
     if (rtnval==-1)
     {
-        fprintf(stderr,"ph_SetVideoMode(): ph_ResizeImage failed !\n");
+        fprintf(stderr,"ph_SetVideoMode(): ph_SetupUpdateFunction failed !\n");
         return NULL;
     }
 
-    /* delayed set caption call */
-    if (captionflag)
-    {
-        ph_SetCaption(this, this->wm_title, NULL);
-    }
-
     /* finish window drawing */
     PtFlush();
 
@@ -495,12 +499,6 @@
         PtDestroyWidget(window);
         window=NULL;
     }
-    
-    /* restore palette */
-    if (desktoppal!=SDLPH_PAL_NONE)
-    {
-        PgSetPalette(ph_palette, 0, 0, _Pg_MAX_PALETTE, Pg_PALSET_GLOBAL | Pg_PALSET_FORCE_EXPOSE, 0);
-    }
 
 #ifdef HAVE_OPENGL
     if (oglctx)
@@ -510,13 +508,30 @@
         oglctx=NULL;
     }
 #endif /* HAVE_OPENGL */
+
+    /* restore palette */
+    if (desktoppal!=SDLPH_PAL_NONE)
+    {
+        PgSetPalette(savedpal, 1, 0, _Pg_MAX_PALETTE, Pg_PALSET_HARD | Pg_PALSET_FORCE_EXPOSE, 0);
+        /* pass -1, to force release palette */
+        PgSetPalette(savedpal, 1, 0, -1, Pg_PALSET_HARD | Pg_PALSET_FORCE_EXPOSE, 0);
+    }
+
+    if (event!=NULL)
+    {
+        free(event);
+        event=NULL;
+    }
 }
 
 static int ph_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
 {
     int i;
-    PhPoint_t point={0, 0};
-    PgColor_t syspalph[_Pg_MAX_PALETTE];
+    SDL_Rect updaterect;
+
+    updaterect.x = updaterect.y = 0;
+    updaterect.w = this->screen->w;
+    updaterect.h = this->screen->h;
 
     /* palette emulation code, using palette of the PhImage_t struct */
     if (desktoppal==SDLPH_PAL_EMULATE)
@@ -525,14 +540,11 @@
         {
             for (i=firstcolor; i<firstcolor+ncolors; i++)
             {
-                SDL_Image->palette[i]  = 0x00000000UL;
-                SDL_Image->palette[i] |= colors[i-firstcolor].r<<16;
-                SDL_Image->palette[i] |= colors[i-firstcolor].g<<8;
-                SDL_Image->palette[i] |= colors[i-firstcolor].b;
+                syspalph[i] = PgRGB(colors[i-firstcolor].r, colors[i-firstcolor].g, colors[i-firstcolor].b);
+                SDL_Image->palette[i] = syspalph[i];
             }
-
-           /* image needs to be redrawed, very slow method */
-           PgDrawPhImage(&point, SDL_Image, 0);
+            /* image needs to be redrawn */
+            this->UpdateRects(this, 1, &updaterect);
         }
     }
     else
@@ -541,26 +553,20 @@
         {
             for (i=firstcolor; i<firstcolor+ncolors; i++)
             {
-                syspalph[i]  = 0x00000000UL;
-                syspalph[i] |= colors[i-firstcolor].r<<16;
-                syspalph[i] |= colors[i-firstcolor].g<<8;
-                syspalph[i] |= colors[i-firstcolor].b;
+                syspalph[i] = PgRGB(colors[i-firstcolor].r, colors[i-firstcolor].g, colors[i-firstcolor].b);
             }
 
             if ((this->screen->flags & SDL_FULLSCREEN) != SDL_FULLSCREEN)
             {
-                /* window mode must use soft palette */
-                PgSetPalette((PgColor_t*)&syspalph[firstcolor], 0, firstcolor, ncolors, Pg_PALSET_SOFT, 0);
-                /* image needs to be redrawed, very slow method */
-                if (SDL_Image)
-                {
-                   PgDrawPhImage(&point, SDL_Image, 0);
-                }
+                 /* window mode must use soft palette */
+                PgSetPalette(&syspalph[firstcolor], 1, firstcolor, ncolors, Pg_PALSET_SOFT, 0);
+                /* image needs to be redrawn */
+                this->UpdateRects(this, 1, &updaterect);
             }
             else
             {
                 /* fullscreen mode must use hardware palette */
-                PgSetPalette((PgColor_t*)&syspalph[firstcolor], 0, firstcolor, ncolors, Pg_PALSET_GLOBAL, 0);
+                PgSetPalette(&syspalph[firstcolor], 1, firstcolor, ncolors, Pg_PALSET_HARDLOCKED, 0);
             }
         }
         else
@@ -576,11 +582,9 @@
 
 int ph_SetupOpenGLContext(_THIS, int width, int height, int bpp, Uint32 flags)
 {
-    PtArg_t args[8];
     PhDim_t dim;
     uint64_t OGLAttrib[PH_OGL_MAX_ATTRIBS];
     int OGLargc;
-    int pargc;
 
     dim.w=width;
     dim.h=height;
@@ -630,51 +634,6 @@
 
     PhDCSetCurrent(oglctx);
 
-    pargc=0;
-
-    PtSetArg(&args[pargc++], Pt_ARG_DIM, &dim, 0);
-    PtSetArg(&args[pargc++], Pt_ARG_RESIZE_FLAGS, Pt_FALSE, Pt_RESIZE_XY_AS_REQUIRED);
-    PtSetArg(&args[pargc++], Pt_ARG_FILL_COLOR, Pg_BLACK, 0);
-
-    if (flags & SDL_FULLSCREEN)
-    {
-        PhPoint_t pos;
-
-        pos.x=0;
-        pos.y=0;
-
-        PtSetArg(&args[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_FALSE, ~0);
-        PtSetArg(&args[pargc++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_TRUE, Ph_WM_FFRONT | Ph_WM_CLOSE | Ph_WM_TOFRONT | Ph_WM_CONSWITCH);
-        PtSetArg(&args[pargc++], Pt_ARG_WINDOW_STATE, Pt_TRUE, Ph_WM_STATE_ISFRONT | Ph_WM_STATE_ISFOCUS);
-        PtSetArg(&args[pargc++], Pt_ARG_POS, &pos, 0);
-    }
-    else
-    {
-        /* remove border and caption if no frame flag selected */
-        if ((flags & SDL_NOFRAME) == SDL_NOFRAME)
-        {
-            PtSetArg(&args[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, 0, Ph_WM_RENDER_TITLE | Ph_WM_RENDER_BORDER);
-        }
-        else
-        {
-           /* if window is not resizable then remove resize handles */
-           if ((flags & SDL_RESIZABLE) != SDL_RESIZABLE)
-           {
-               PtSetArg(&args[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, 0, Ph_WM_RENDER_RESIZE);
-           }
-        }
-    }
-
-    if (window!=NULL)
-    {
-        PtUnrealizeWidget(window);
-        PtDestroyWidget(window);
-        window=NULL;
-    }
-
-    window=PtCreateWidget(PtWindow, NULL, pargc, args);
-    PtRealizeWidget(window);
-
     /* disable mouse for fullscreen */
     if (flags & SDL_FULLSCREEN)
     {
@@ -717,3 +676,30 @@
 }
 
 #endif /* HAVE_OPENGL */
+
+static void ph_UpdateMouse(_THIS)
+{
+    PhCursorInfo_t phcursor;
+    short abs_x;
+    short abs_y;
+
+    /* Lock the event thread, in multi-threading environments */
+    SDL_Lock_EventThread();
+
+    /* synchronizing photon mouse cursor position and SDL mouse position, if cursor appears over window. */
+    PtGetAbsPosition(window, &abs_x, &abs_y);
+    PhQueryCursor(PhInputGroup(NULL), &phcursor);
+    if (((phcursor.pos.x >= abs_x) && (phcursor.pos.x <= abs_x + this->screen->w)) &&
+        ((phcursor.pos.y >= abs_y) && (phcursor.pos.y <= abs_y + this->screen->h)))
+    {
+        SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
+        SDL_PrivateMouseMotion(0, 0, phcursor.pos.x-abs_x, phcursor.pos.y-abs_y);
+    }
+    else
+    {
+        SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
+    }
+
+    /* Unlock the event thread, in multi-threading environments */
+    SDL_Unlock_EventThread();
+}