Added current_w and current_h to the SDL_VideoInfo structure, which i…

…s set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.

SDL_SetVideoMode() now accepts 0 for width or height and will use the current video mode (or the desktop mode if no mode has been set.)

WhatsNew

@@ -4,7 +4,15 @@ This is a list of API changes in SDL's version history.
 Version 1.0:
 
 1.2.10:
+	Added current_w and current_h to the SDL_VideoInfo structure,
+	which is set to the desktop resolution during video intialization,
+	and then set to the current resolution when a video mode is set.
+
+	SDL_SetVideoMode() now accepts 0 for width or height and will use
+	the current video mode (or the desktop mode if no mode has been set.)
+
 	Added SDL_GetKeyRepeat()
+
 	Added SDL_config.h, with defaults for various build environments.
 
 1.2.7:

include/SDL_video.h

@@ -161,6 +161,8 @@ typedef struct SDL_VideoInfo {
 	Uint32 UnusedBits3  :16;
 	Uint32 video_mem;	/* The total amount of video memory (in K) */
 	SDL_PixelFormat *vfmt;	/* Value: The format of the video surface */
+	int    current_w;	/* Value: The current video mode width */
+	int    current_h;	/* Value: The current video mode height */
 } SDL_VideoInfo;
 
 

src/video/SDL_video.c

@@ -587,6 +587,13 @@ SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags)
 	}
 	this = video = current_video;
 
+	/* Default to the current width and height */
+	if ( width == 0 ) {
+		width = video->info.current_w;
+	}
+	if ( height == 0 ) {
+		height = video->info.current_h;
+	}
 	/* Default to the current video bpp */
 	if ( bpp == 0 ) {
 		flags |= SDL_ANYFORMAT;
@@ -889,6 +896,8 @@ SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags)
 		SDL_PublicSurface = SDL_VideoSurface;
 	}
 	video->info.vfmt = SDL_VideoSurface->format;
+	video->info.current_w = SDL_VideoSurface->w;
+	video->info.current_h = SDL_VideoSurface->h;
 
 	/* We're done! */
 	return(SDL_PublicSurface);

src/video/bwindow/SDL_sysvideo.cc

@@ -275,6 +275,8 @@ int BE_VideoInit(_THIS, SDL_PixelFormat *vformat)
 
 	/* Save the current display mode */
 	bscreen.GetMode(&saved_mode);
+	_this->info.current_w = saved_mode.virtual_width;
+	_this->info.current_h = saved_mode.virtual_height;
 
 	/* Determine the screen depth */
 	vformat->BitsPerPixel = ColorSpaceToBitsPerPixel(bscreen.ColorSpace());

src/video/cybergfx/SDL_cgxvideo.c

@@ -463,6 +463,8 @@ static int CGX_VideoInit(_THIS, SDL_PixelFormat *vformat)
 		SDL_SetError("Couldn't lock the display");
 		return(-1);
 	}
+	this->info.current_w = SDL_Display->Width;
+	this->info.current_h = SDL_Display->Height;
 
 	D(bug("Checking if we are using a CGX native display...\n"));
 
@@ -834,8 +836,6 @@ int CGX_CreateWindow(_THIS, SDL_Surface *screen,
 
 	if( !SDL_windowid ) {
 	    CGX_SetSizeHints(this, w, h, flags);
-		current_w = w;
-		current_h = h;
 	}
 
 	/* Set our colormaps when not setting a GL mode */
@@ -885,8 +885,6 @@ int CGX_ResizeWindow(_THIS,
 	if ( ! SDL_windowid ) {
 		/* Resize the window manager window */
 		CGX_SetSizeHints(this, w, h, flags);
-		current_w = w;
-		current_h = h;
 
 		ChangeWindowBox(SDL_Window,SDL_Window->LeftEdge,SDL_Window->TopEdge, w+SDL_Window->BorderLeft+SDL_Window->BorderRight,
 					h+SDL_Window->BorderTop+SDL_Window->BorderBottom);

src/video/cybergfx/SDL_cgxvideo.h

@@ -67,10 +67,6 @@ struct SDL_PrivateVideoData {
     Uint8 *Ximage;		/* The X image for our window */
     int swap_pixels;		/* Flag: true if display is swapped endian */
 
-    /* The current width and height of the fullscreen mode */
-    int current_w;
-    int current_h;
-
     /* Support for internal mouse warping */
     struct {
         int x;
@@ -132,8 +128,6 @@ struct SDL_PrivateVideoData {
 #define SDL_Ximage		(this->hidden->Ximage)
 #define SDL_GC			(this->hidden->gc)
 #define swap_pixels		(this->hidden->swap_pixels)
-#define current_w		(this->hidden->current_w)
-#define current_h		(this->hidden->current_h)
 #define mouse_last		(this->hidden->mouse_last)
 #define mouse_accel		(this->hidden->mouse_accel)
 #define mouse_relative		(this->hidden->mouse_relative)

src/video/dga/SDL_dgavideo.c

@@ -349,6 +349,10 @@ static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat)
 	}
 	DGA_event_base = event_base;
 
+	/* Determine the current screen size */
+	this->info.current_w = DisplayWidth(DGA_Display, DGA_Screen);
+	this->info.current_h = DisplayHeight(DGA_Display, DGA_Screen);
+
 	/* Determine the current screen depth */
 	visual = DefaultVisual(DGA_Display, DGA_Screen);
 	{

src/video/epoc/SDL_epocvideo.cpp

@@ -291,6 +291,9 @@ int EPOC_VideoInit(_THIS, SDL_PixelFormat *vformat)
 
     #endif /* __WINS__ */
 
+    _this->info.current_w = Private->EPOC_ScreenSize.iWidth;
+    _this->info.current_h = Private->EPOC_ScreenSize.iHeight;
+
     /* The "best" video format should be returned to caller. */
 
     vformat->BitsPerPixel       = /*!!GetBpp(displayMode) */ 8;

src/video/fbcon/SDL_fbvideo.c

@@ -636,6 +636,8 @@ static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat)
 	}
 
 	/* Fill in our hardware acceleration capabilities */
+	this->info.current_w = current_w;
+	this->info.current_h = current_h;
 	this->info.wm_available = 0;
 	this->info.hw_available = 1;
 	this->info.video_mem = finfo.smem_len/1024;

src/video/gapi/SDL_gapivideo.c

@@ -529,6 +529,10 @@ int GAPI_VideoInit(_THIS, SDL_PixelFormat *vformat)
 		GAPI_AddMode(this, bpp, gapi->gxProperties.cxWidth, gapi->gxProperties.cyHeight);	
 	}
 
+	/* Determine the current screen size */
+	this->info.current_w = gapi->gxProperties.cxWidth;
+	this->info.current_h = gapi->gxProperties.cyHeight;
+
 	/* Sort the mode lists */
 	for ( i=0; i<NUM_MODELISTS; ++i ) {
 		if ( gapi->SDL_nummodes[i] > 0 ) {

src/video/gem/SDL_gemvideo.c

@@ -430,9 +430,9 @@ int GEM_VideoInit(_THIS, SDL_PixelFormat *vformat)
 	/* Setup destination mfdb */
 	VDI_dst_mfdb.fd_addr = NULL;
 
-	/* Update hardware info */
-	this->info.hw_available = 0;
-	this->info.video_mem = 0;
+	/* Determine the current screen size */
+	this->info.current_w = VDI_w;
+	this->info.current_h = VDI_h;
 
 	/* Determine the screen depth */
 	/* we change this during the SDL_SetVideoMode implementation... */

src/video/ggi/SDL_ggivideo.c

@@ -197,6 +197,10 @@ int GGI_VideoInit(_THIS, SDL_PixelFormat *vformat)
 		GGI_VideoQuit(NULL);
 	}
 
+	/* Determine the current screen size */
+	this->info.current_w = mode.virt.x;
+	this->info.current_h = mode.virt.y;
+
 	/* Set a palette for palletized modes */
 	if (GT_SCHEME(mode.graphtype) == GT_PALETTE)
 	{

src/video/ipod/SDL_ipodvideo.c

@@ -287,6 +287,10 @@ static int iPod_VideoInit (_THIS, SDL_PixelFormat *vformat)
 
 	fcntl (kbfd, F_SETFL, O_RDWR | O_NONBLOCK);
 
+	/* Determine the current screen size */
+	this->info.current_w = lcd_width;
+	this->info.current_h = lcd_height;
+
 	if ((generation >= 60000) && (generation < 70000)) {
 	    vformat->BitsPerPixel = 16;
 	    vformat->Rmask = 0xF800;

src/video/macdsp/SDL_dspvideo.c

@@ -329,7 +329,7 @@ VideoBootStrap DSp_bootstrap = {
 };
 
 /* Use DSp/Display Manager to build mode list for given screen */
-static SDL_Rect**  DSp_BuildModeList (const GDHandle gDevice)
+static SDL_Rect**  DSp_BuildModeList (const GDHandle gDevice, int *displayWidth, int *displayHeight)
 {
 	DSpContextAttributes  attributes;
 	DSpContextReference   context;
@@ -355,6 +355,9 @@ static SDL_Rect**  DSp_BuildModeList (const GDHandle gDevice)
 
 	if ( DSpContext_GetAttributes (context, &attributes) != noErr )
 		return NULL;
+
+	*displayWidth = attributes.displayWidth;
+	*displayHeight = attributes.displayHeight;
 
 	for ( i = 0; i < SDL_arraysize(temp_list); i++ ) {
 		width  = attributes.displayWidth;
@@ -556,14 +559,14 @@ static int DSp_VideoInit(_THIS, SDL_PixelFormat *vformat)
 			break;
 	}
 
-   if ( DSp_CreatePalette (this) < 0 ) {
-
-      SDL_SetError ("Could not create palette");
-      return (-1);
-   }
+	if ( DSp_CreatePalette (this) < 0 ) {
+		SDL_SetError ("Could not create palette");
+		return (-1);
+	}
 
 	/* Get a list of available fullscreen modes */
-	SDL_modelist = DSp_BuildModeList (SDL_Display);
+	SDL_modelist = DSp_BuildModeList (SDL_Display,
+	                                  &this->info.current_w, &this->info.current_h);
 	if (SDL_modelist == NULL) {
 		SDL_SetError ("DrawSprocket could not build a mode list");
 		return (-1);

src/video/macrom/SDL_romvideo.c

@@ -203,6 +203,10 @@ static int ROM_VideoInit(_THIS, SDL_PixelFormat *vformat)
 	/* Get a handle to the main monitor */
 	SDL_Display = GetMainDevice();
 
+	/* Determine the current screen size */
+	this->info.current_w = (**SDL_Display).gdRect.right;
+	this->info.current_h = (**SDL_Display).gdRect.bottom;
+
 	/* Determine pixel format */
 	vformat->BitsPerPixel = (**(**SDL_Display).gdPMap).pixelSize;
 	switch (vformat->BitsPerPixel) {

src/video/nanox/SDL_nxvideo.c

@@ -209,6 +209,10 @@ int NX_VideoInit (_THIS, SDL_PixelFormat * vformat)
     GrGetScreenInfo (& si) ;
     SDL_Visual.bpp = si.bpp ;
 
+    /* Determine the current screen size */
+    this->info.current_w = si.cols ;
+    this->info.current_h = si.rows ;
+
     // GetVideoMode
     SDL_modelist = (SDL_Rect **) SDL_malloc (sizeof (SDL_Rect *) * 2) ;
     if (SDL_modelist) {

src/video/os2fslib/SDL_os2fslib.c

@@ -2724,6 +2724,10 @@ static int os2fslib_VideoInit(_THIS, SDL_PixelFormat *vformat)
     return -1;
   }
 
+  /* Determine the current screen size */
+  _this->info.current_w = 0; // FIXME!
+  _this->info.current_h = 0; // FIXME!
+
   /* Determine the screen depth */
   vformat->BitsPerPixel = pDesktopMode->uiBPP;
   vformat->BytesPerPixel = (vformat->BitsPerPixel+7)/8;

src/video/photon/SDL_ph_video.c

@@ -400,6 +400,10 @@ static int ph_VideoInit(_THIS, SDL_PixelFormat* vformat)
         return -1;
     }
 
+   /* Determine the current screen size */
+   this->info.current_w = desktop_mode.width;
+   this->info.current_h = desktop_mode.height;
+
     /* We need to return BytesPerPixel as it in used by CreateRGBsurface */
     vformat->BitsPerPixel = desktop_mode.bits_per_pixel;
     vformat->BytesPerPixel = desktop_mode.bytes_per_scanline/desktop_mode.width;

src/video/picogui/SDL_pgvideo.c

@@ -166,6 +166,10 @@ int PG_VideoInit(_THIS, SDL_PixelFormat *vformat)
 
 	PG_InitEvents(this);
 
+	/* Determine the current screen size */
+	this->info.current_w = this->hidden->mi.lxres;
+	this->info.current_h = this->hidden->mi.lyres;
+
 	/* Determine the screen depth.
 	 * We change this during the SDL_SetVideoMode implementation... 
 	 * Round up to the nearest Bytes per pixel

src/video/ps2gs/SDL_gsvideo.c

@@ -298,14 +298,19 @@ static int GS_VideoInit(_THIS, SDL_PixelFormat *vformat)
 		return(-1);
 	}
 
-	/* Determine the current screen depth */
 	if ( ioctl(console_fd, PS2IOC_GSCREENINFO, &vinfo) < 0 ) {
 		close(memory_fd);
 		close(console_fd);
 		console_fd = -1;
 		SDL_SetError("Couldn't get console pixel format");
 		return(-1);
 	}
+
+	/* Determine the current screen size */
+	this->info.current_w = vinfo.w;
+	this->info.current_h = vinfo.h;
+
+	/* Determine the current screen depth */
 	switch (vinfo.psm) {
 	    /* Supported pixel formats */
 	    case PS2_GS_PSMCT32:

src/video/qtopia/SDL_sysvideo.cc

@@ -226,6 +226,10 @@ extern "C" {
     QT_AddMode(_this, ((vformat->BitsPerPixel+7)/8)-1,
 	       desktop_size.height(), desktop_size.width());
 
+    /* Determine the current screen size */
+    this->info.current_w = desktop_size.width();
+    this->info.current_h = desktop_size.height();
+
     /* Create the window / widget */
     SDL_Win = new SDL_QWin(QSize(QT_HIDDEN_SIZE, QT_HIDDEN_SIZE));
     ((QPEApplication*)qApp)->showMainWidget(SDL_Win);

src/video/quartz/SDL_QuartzVideo.m

@@ -200,6 +200,11 @@ static int QZ_VideoInit (_THIS, SDL_PixelFormat *video_format) {
     CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayHeight),
                       kCFNumberSInt32Type, &device_height);
 
+    /* Determine the current screen size */
+    this->info.current_w = device_width;
+    this->info.current_h = device_height;
+
+    /* Determine the default screen depth */
     video_format->BitsPerPixel = device_bpp;
 
     /* Set misc globals */

src/video/riscos/SDL_riscosvideo.c

@@ -175,6 +175,10 @@ int RISCOS_VideoInit(_THIS, SDL_PixelFormat *vformat)
 	_kernel_swi(OS_ReadModeVariable, &regs, &regs);
 	vformat->BitsPerPixel = (1 << regs.r[2]);
 
+	/* Determine the current screen size */
+	this->info.current_w = 0; /* FIXME! */
+	this->info.current_h = 0; /* FIXME! */
+
 	/* Minimum bpp for SDL is 8 */
 	if (vformat->BitsPerPixel < 8) vformat->BitsPerPixel = 8;
 

src/video/svga/SDL_svgavideo.c

@@ -257,6 +257,10 @@ int SVGA_VideoInit(_THIS, SDL_PixelFormat *vformat)
 	}
 	keyboard_seteventhandler(SVGA_keyboardcallback);
 
+	/* Determine the current screen size */
+	this->info.current_w = 0;
+	this->info.current_h = 0;
+
 	/* Determine the screen depth (use default 8-bit depth) */
 	vformat->BitsPerPixel = 8;
 

src/video/vgl/SDL_vglvideo.c

@@ -257,6 +257,12 @@ int VGL_VideoInit(_THIS, SDL_PixelFormat *vformat)
 		return -1;
 	}
 
+	/* Determine the current screen size */
+	if (VGLCurMode != NULL) {
+		this->info.current_w = VGLCurMode->ModeInfo.Xsize;
+		this->info.current_h = VGLCurMode->ModeInfo.Ysize;
+	}
+
 	/* Determine the screen depth */
 	if (VGLCurMode != NULL)
 		vformat->BitsPerPixel = VGLCurMode->Depth;

src/video/windib/SDL_dibvideo.c

@@ -334,6 +334,8 @@ int DIB_VideoInit(_THIS, SDL_PixelFormat *vformat)
 #endif
 	/* Query for the desktop resolution */
 	EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &SDL_desktop_mode);
+	this->info.current_w = SDL_desktop_mode.dmPelsWidth;
+	this->info.current_h = SDL_desktop_mode.dmPelsHeight;
 
 	/* Query for the list of available video modes */
 	for ( i=0; EnumDisplaySettings(NULL, i, &settings); ++i ) {

src/video/windx5/SDL_dx5video.c

@@ -930,6 +930,8 @@ int DX5_VideoInit(_THIS, SDL_PixelFormat *vformat)
 #ifndef NO_CHANGEDISPLAYSETTINGS
 	/* Query for the desktop resolution */
 	EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &SDL_desktop_mode);
+	this->info.current_w = SDL_desktop_mode.dmPelsWidth;
+	this->info.current_h = SDL_desktop_mode.dmPelsHeight;
 #endif
 
 	/* Enumerate the available fullscreen modes */

src/video/wscons/SDL_wsconsvideo.c

@@ -300,6 +300,9 @@ int WSCONS_VideoInit(_THIS, SDL_PixelFormat *vformat)
     height = private->info.height;
   }
 
+  this->info.current_w = width;
+  this->info.current_h = height;
+
   if (private->shadowFB) {
     private->shadowmem = (Uint8 *)SDL_malloc(len);
     if (private->shadowmem == NULL) {