diff src/video/vgl/SDL_vglvideo.c @ 1662:782fd950bd46 SDL-1.3

Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents 57431b199aed
children 4da1ee79c9af
line wrap: on
line diff
--- a/src/video/vgl/SDL_vglvideo.c	Sun May 21 17:27:13 2006 +0000
+++ b/src/video/vgl/SDL_vglvideo.c	Sun May 28 13:04:16 2006 +0000
@@ -45,455 +45,472 @@
 
 
 /* Initialization/Query functions */
-static int VGL_VideoInit(_THIS, SDL_PixelFormat *vformat);
-static SDL_Rect **VGL_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
-static SDL_Surface *VGL_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
-static int VGL_SetColors(_THIS, int firstcolor, int ncolors,
-			  SDL_Color *colors);
-static void VGL_VideoQuit(_THIS);
+static int VGL_VideoInit (_THIS, SDL_PixelFormat * vformat);
+static SDL_Rect **VGL_ListModes (_THIS, SDL_PixelFormat * format,
+                                 Uint32 flags);
+static SDL_Surface *VGL_SetVideoMode (_THIS, SDL_Surface * current, int width,
+                                      int height, int bpp, Uint32 flags);
+static int VGL_SetColors (_THIS, int firstcolor, int ncolors,
+                          SDL_Color * colors);
+static void VGL_VideoQuit (_THIS);
 
 /* Hardware surface functions */
-static int VGL_AllocHWSurface(_THIS, SDL_Surface *surface);
-static int VGL_LockHWSurface(_THIS, SDL_Surface *surface);
-static int VGL_FlipHWSurface(_THIS, SDL_Surface *surface);
-static void VGL_UnlockHWSurface(_THIS, SDL_Surface *surface);
-static void VGL_FreeHWSurface(_THIS, SDL_Surface *surface);
+static int VGL_AllocHWSurface (_THIS, SDL_Surface * surface);
+static int VGL_LockHWSurface (_THIS, SDL_Surface * surface);
+static int VGL_FlipHWSurface (_THIS, SDL_Surface * surface);
+static void VGL_UnlockHWSurface (_THIS, SDL_Surface * surface);
+static void VGL_FreeHWSurface (_THIS, SDL_Surface * surface);
 
 /* Misc function */
-static VGLMode ** VGLListModes(int depth, int mem_model);
-static void VGLWaitRetrace(void);
+static VGLMode **VGLListModes (int depth, int mem_model);
+static void VGLWaitRetrace (void);
 
 /* VGL driver bootstrap functions */
 
-static int VGL_Available(void)
+static int
+VGL_Available (void)
 {
-	/*
-	 * Check to see if we are root and stdin is a
-	 * virtual console. Also try to ensure that
-	 * modes other than 320x200 are available
-	 */
-	int console, hires_available, i;
-	VGLMode **modes;
+    /*
+     * Check to see if we are root and stdin is a
+     * virtual console. Also try to ensure that
+     * modes other than 320x200 are available
+     */
+    int console, hires_available, i;
+    VGLMode **modes;
 
-	console = STDIN_FILENO;
-	if ( console >= 0 ) {
-		struct stat sb;
-		struct vt_mode dummy;
+    console = STDIN_FILENO;
+    if (console >= 0) {
+        struct stat sb;
+        struct vt_mode dummy;
 
-		if ( (fstat(console, &sb) < 0) ||
-		     (ioctl(console, VT_GETMODE, &dummy) < 0) ) {
-			console = -1;
-		}
-	}
-	if (geteuid() != 0 && console == -1)
-		return 0;
+        if ((fstat (console, &sb) < 0) ||
+            (ioctl (console, VT_GETMODE, &dummy) < 0)) {
+            console = -1;
+        }
+    }
+    if (geteuid () != 0 && console == -1)
+        return 0;
 
-	modes = VGLListModes(8, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
-	hires_available = 0;
-	for (i = 0; modes[i] != NULL; i++) {
-		if ((modes[i]->ModeInfo.Xsize > 320) &&
-		    (modes[i]->ModeInfo.Ysize > 200) &&
-		    ((modes[i]->ModeInfo.Type == VIDBUF8) ||
-		     (modes[i]->ModeInfo.Type == VIDBUF16) ||
-		     (modes[i]->ModeInfo.Type == VIDBUF32))) {
-			hires_available = 1;
-			break;
-		}
-	}
-	return hires_available;
+    modes = VGLListModes (8, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
+    hires_available = 0;
+    for (i = 0; modes[i] != NULL; i++) {
+        if ((modes[i]->ModeInfo.Xsize > 320) &&
+            (modes[i]->ModeInfo.Ysize > 200) &&
+            ((modes[i]->ModeInfo.Type == VIDBUF8) ||
+             (modes[i]->ModeInfo.Type == VIDBUF16) ||
+             (modes[i]->ModeInfo.Type == VIDBUF32))) {
+            hires_available = 1;
+            break;
+        }
+    }
+    return hires_available;
 }
 
-static void VGL_DeleteDevice(SDL_VideoDevice *device)
+static void
+VGL_DeleteDevice (SDL_VideoDevice * device)
 {
-	SDL_free(device->hidden);
-	SDL_free(device);
+    SDL_free (device->hidden);
+    SDL_free (device);
 }
 
-static SDL_VideoDevice *VGL_CreateDevice(int devindex)
+static SDL_VideoDevice *
+VGL_CreateDevice (int devindex)
 {
-	SDL_VideoDevice *device;
+    SDL_VideoDevice *device;
 
-	/* Initialize all variables that we clean on shutdown */
-	device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
-	if ( device ) {
-		SDL_memset(device, 0, (sizeof *device));
-		device->hidden = (struct SDL_PrivateVideoData *)
-				  SDL_malloc((sizeof *device->hidden));
-	}
-	if ( (device == NULL) || (device->hidden == NULL) ) {
-		SDL_OutOfMemory();
-		if ( device ) {
-			SDL_free(device);
-		}
-		return(0);
-	}
-	SDL_memset(device->hidden, 0, (sizeof *device->hidden));
+    /* Initialize all variables that we clean on shutdown */
+    device = (SDL_VideoDevice *) SDL_malloc (sizeof (SDL_VideoDevice));
+    if (device) {
+        SDL_memset (device, 0, (sizeof *device));
+        device->hidden = (struct SDL_PrivateVideoData *)
+            SDL_malloc ((sizeof *device->hidden));
+    }
+    if ((device == NULL) || (device->hidden == NULL)) {
+        SDL_OutOfMemory ();
+        if (device) {
+            SDL_free (device);
+        }
+        return (0);
+    }
+    SDL_memset (device->hidden, 0, (sizeof *device->hidden));
 
-	/* Set the function pointers */
-	device->VideoInit = VGL_VideoInit;
-	device->ListModes = VGL_ListModes;
-	device->SetVideoMode = VGL_SetVideoMode;
-	device->SetColors = VGL_SetColors;
-	device->UpdateRects = NULL;
-	device->VideoQuit = VGL_VideoQuit;
-	device->AllocHWSurface = VGL_AllocHWSurface;
-	device->CheckHWBlit = NULL;
-	device->FillHWRect = NULL;
-	device->SetHWColorKey = NULL;
-	device->SetHWAlpha = NULL;
-	device->LockHWSurface = VGL_LockHWSurface;
-	device->UnlockHWSurface = VGL_UnlockHWSurface;
-	device->FlipHWSurface = VGL_FlipHWSurface;
-	device->FreeHWSurface = VGL_FreeHWSurface;
-	device->SetIcon = NULL;
-	device->SetCaption = NULL;
-	device->GetWMInfo = NULL;
-	device->FreeWMCursor = VGL_FreeWMCursor;
-	device->CreateWMCursor = VGL_CreateWMCursor;
-	device->ShowWMCursor = VGL_ShowWMCursor;
-	device->WarpWMCursor = VGL_WarpWMCursor;
-	device->InitOSKeymap = VGL_InitOSKeymap;
-	device->PumpEvents = VGL_PumpEvents;
+    /* Set the function pointers */
+    device->VideoInit = VGL_VideoInit;
+    device->ListModes = VGL_ListModes;
+    device->SetVideoMode = VGL_SetVideoMode;
+    device->SetColors = VGL_SetColors;
+    device->UpdateRects = NULL;
+    device->VideoQuit = VGL_VideoQuit;
+    device->AllocHWSurface = VGL_AllocHWSurface;
+    device->CheckHWBlit = NULL;
+    device->FillHWRect = NULL;
+    device->SetHWColorKey = NULL;
+    device->SetHWAlpha = NULL;
+    device->LockHWSurface = VGL_LockHWSurface;
+    device->UnlockHWSurface = VGL_UnlockHWSurface;
+    device->FlipHWSurface = VGL_FlipHWSurface;
+    device->FreeHWSurface = VGL_FreeHWSurface;
+    device->SetIcon = NULL;
+    device->SetCaption = NULL;
+    device->GetWMInfo = NULL;
+    device->FreeWMCursor = VGL_FreeWMCursor;
+    device->CreateWMCursor = VGL_CreateWMCursor;
+    device->ShowWMCursor = VGL_ShowWMCursor;
+    device->WarpWMCursor = VGL_WarpWMCursor;
+    device->InitOSKeymap = VGL_InitOSKeymap;
+    device->PumpEvents = VGL_PumpEvents;
 
-	device->free = VGL_DeleteDevice;
+    device->free = VGL_DeleteDevice;
 
-	return device;
+    return device;
 }
 
 VideoBootStrap VGL_bootstrap = {
-	"vgl", "FreeBSD libVGL",
-	VGL_Available, VGL_CreateDevice
+    "vgl", "FreeBSD libVGL",
+    VGL_Available, VGL_CreateDevice
 };
 
-static int VGL_AddMode(_THIS, VGLMode *inmode)
+static int
+VGL_AddMode (_THIS, VGLMode * inmode)
 {
-	SDL_Rect *mode;
+    SDL_Rect *mode;
 
-	int i, index;
-	int next_mode;
+    int i, index;
+    int next_mode;
 
-	/* Check to see if we already have this mode */
-	if (inmode->Depth < 8) {  /* Not supported */
-		return 0;
-	}
-	index = ((inmode->Depth + 7) / 8) - 1;
-	for (i=0; i<SDL_nummodes[index]; ++i) {
-		mode = SDL_modelist[index][i];
-		if ((mode->w == inmode->ModeInfo.Xsize) &&
-		    (mode->h == inmode->ModeInfo.Ysize))
-			return 0;
-	}
+    /* Check to see if we already have this mode */
+    if (inmode->Depth < 8) {    /* Not supported */
+        return 0;
+    }
+    index = ((inmode->Depth + 7) / 8) - 1;
+    for (i = 0; i < SDL_nummodes[index]; ++i) {
+        mode = SDL_modelist[index][i];
+        if ((mode->w == inmode->ModeInfo.Xsize) &&
+            (mode->h == inmode->ModeInfo.Ysize))
+            return 0;
+    }
 
-	/* Set up the new video mode rectangle */
-	mode = (SDL_Rect *)SDL_malloc(sizeof *mode);
-	if (mode == NULL) {
-		SDL_OutOfMemory();
-		return -1;
-	}
-	mode->x = 0;
-	mode->y = 0;
-	mode->w = inmode->ModeInfo.Xsize;
-	mode->h = inmode->ModeInfo.Ysize;
+    /* Set up the new video mode rectangle */
+    mode = (SDL_Rect *) SDL_malloc (sizeof *mode);
+    if (mode == NULL) {
+        SDL_OutOfMemory ();
+        return -1;
+    }
+    mode->x = 0;
+    mode->y = 0;
+    mode->w = inmode->ModeInfo.Xsize;
+    mode->h = inmode->ModeInfo.Ysize;
 
-	/* Allocate the new list of modes, and fill in the new mode */
-	next_mode = SDL_nummodes[index];
-	SDL_modelist[index] = (SDL_Rect **)
-		SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *));
-	if (SDL_modelist[index] == NULL) {
-		SDL_OutOfMemory();
-		SDL_nummodes[index] = 0;
-		SDL_free(mode);
-		return -1;
-	}
-	SDL_modelist[index][next_mode] = mode;
-	SDL_modelist[index][next_mode+1] = NULL;
-	SDL_nummodes[index]++;
+    /* Allocate the new list of modes, and fill in the new mode */
+    next_mode = SDL_nummodes[index];
+    SDL_modelist[index] = (SDL_Rect **)
+        SDL_realloc (SDL_modelist[index],
+                     (1 + next_mode + 1) * sizeof (SDL_Rect *));
+    if (SDL_modelist[index] == NULL) {
+        SDL_OutOfMemory ();
+        SDL_nummodes[index] = 0;
+        SDL_free (mode);
+        return -1;
+    }
+    SDL_modelist[index][next_mode] = mode;
+    SDL_modelist[index][next_mode + 1] = NULL;
+    SDL_nummodes[index]++;
 
-	return 0;
+    return 0;
 }
 
-static void VGL_UpdateVideoInfo(_THIS)
+static void
+VGL_UpdateVideoInfo (_THIS)
 {
-	this->info.wm_available = 0;
-	this->info.hw_available = 1;
-	this->info.video_mem = 0;
-	if (VGLCurMode == NULL) {
-		return;
-	}
-	if (VGLCurMode->ModeInfo.PixelBytes > 0) {
-		this->info.video_mem = VGLCurMode->ModeInfo.PixelBytes *
-				       VGLCurMode->ModeInfo.Xsize *
-				       VGLCurMode->ModeInfo.Ysize;
-	}
+    this->info.wm_available = 0;
+    this->info.hw_available = 1;
+    this->info.video_mem = 0;
+    if (VGLCurMode == NULL) {
+        return;
+    }
+    if (VGLCurMode->ModeInfo.PixelBytes > 0) {
+        this->info.video_mem = VGLCurMode->ModeInfo.PixelBytes *
+            VGLCurMode->ModeInfo.Xsize * VGLCurMode->ModeInfo.Ysize;
+    }
 }
 
-int VGL_VideoInit(_THIS, SDL_PixelFormat *vformat)
+int
+VGL_VideoInit (_THIS, SDL_PixelFormat * vformat)
 {
-	int i;
-	int total_modes;
-	VGLMode **modes;
+    int i;
+    int total_modes;
+    VGLMode **modes;
 
-	/* Initialize all variables that we clean on shutdown */
-	for ( i=0; i<NUM_MODELISTS; ++i ) {
-		SDL_nummodes[i] = 0;
-		SDL_modelist[i] = NULL;
-	}
+    /* Initialize all variables that we clean on shutdown */
+    for (i = 0; i < NUM_MODELISTS; ++i) {
+        SDL_nummodes[i] = 0;
+        SDL_modelist[i] = NULL;
+    }
 
-	/* Enable mouse and keyboard support */
-	if (SDL_getenv("SDL_NO_RAWKBD") == NULL) {
-		if (VGLKeyboardInit(VGL_CODEKEYS) != 0) {
-			SDL_SetError("Unable to initialize keyboard");
-			return -1;
-		}
-	} else {
-		warnx("Requiest to put keyboard into a raw mode ignored");
-	}
-	if (VGL_initkeymaps(STDIN_FILENO) != 0) {
-		SDL_SetError("Unable to initialize keymap");
-		return -1;
-	}
-	if (VGL_initmouse(STDIN_FILENO) != 0) {
-		SDL_SetError("Unable to initialize mouse");
-		return -1;
-	}
-
-	/* Determine the current screen size */
-	if (VGLCurMode != NULL) {
-		this->info.current_w = VGLCurMode->ModeInfo.Xsize;
-		this->info.current_h = VGLCurMode->ModeInfo.Ysize;
-	}
+    /* Enable mouse and keyboard support */
+    if (SDL_getenv ("SDL_NO_RAWKBD") == NULL) {
+        if (VGLKeyboardInit (VGL_CODEKEYS) != 0) {
+            SDL_SetError ("Unable to initialize keyboard");
+            return -1;
+        }
+    } else {
+        warnx ("Requiest to put keyboard into a raw mode ignored");
+    }
+    if (VGL_initkeymaps (STDIN_FILENO) != 0) {
+        SDL_SetError ("Unable to initialize keymap");
+        return -1;
+    }
+    if (VGL_initmouse (STDIN_FILENO) != 0) {
+        SDL_SetError ("Unable to initialize mouse");
+        return -1;
+    }
 
-	/* Determine the screen depth */
-	if (VGLCurMode != NULL)
-		vformat->BitsPerPixel = VGLCurMode->Depth;
-	else
-		vformat->BitsPerPixel = 16;	/* Good default */
+    /* 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;
+    else
+        vformat->BitsPerPixel = 16;     /* Good default */
 
-	/* Query for the list of available video modes */
-	total_modes = 0;
-	modes = VGLListModes(-1, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
-	for (i = 0; modes[i] != NULL; i++) {
-		if ((modes[i]->ModeInfo.Type == VIDBUF8) ||
-		    (modes[i]->ModeInfo.Type == VIDBUF16) ||
-		    (modes[i]->ModeInfo.Type == VIDBUF32)) {
-			VGL_AddMode(this, modes[i]);
-			total_modes++;
-		}
-	}
-	if (total_modes == 0) {
-		SDL_SetError("No linear video modes available");
-		return -1;
-	}
+    /* Query for the list of available video modes */
+    total_modes = 0;
+    modes = VGLListModes (-1, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
+    for (i = 0; modes[i] != NULL; i++) {
+        if ((modes[i]->ModeInfo.Type == VIDBUF8) ||
+            (modes[i]->ModeInfo.Type == VIDBUF16) ||
+            (modes[i]->ModeInfo.Type == VIDBUF32)) {
+            VGL_AddMode (this, modes[i]);
+            total_modes++;
+        }
+    }
+    if (total_modes == 0) {
+        SDL_SetError ("No linear video modes available");
+        return -1;
+    }
 
-	/* Fill in our hardware acceleration capabilities */
-	VGL_UpdateVideoInfo(this);
+    /* Fill in our hardware acceleration capabilities */
+    VGL_UpdateVideoInfo (this);
 
-	/* Create the hardware surface lock mutex */
-	hw_lock = SDL_CreateMutex();
-	if (hw_lock == NULL) {
-		SDL_SetError("Unable to create lock mutex");
-		VGL_VideoQuit(this);
-		return -1;
-	}
+    /* Create the hardware surface lock mutex */
+    hw_lock = SDL_CreateMutex ();
+    if (hw_lock == NULL) {
+        SDL_SetError ("Unable to create lock mutex");
+        VGL_VideoQuit (this);
+        return -1;
+    }
 
-	/* We're done! */
-	return 0;
+    /* We're done! */
+    return 0;
 }
 
-SDL_Rect **VGL_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
+SDL_Rect **
+VGL_ListModes (_THIS, SDL_PixelFormat * format, Uint32 flags)
 {
-	return SDL_modelist[((format->BitsPerPixel+7)/8)-1];
+    return SDL_modelist[((format->BitsPerPixel + 7) / 8) - 1];
 }
 
 /* Various screen update functions available */
-static void VGL_DirectUpdate(_THIS, int numrects, SDL_Rect *rects);
-static void VGL_BankedUpdate(_THIS, int numrects, SDL_Rect *rects);
+static void VGL_DirectUpdate (_THIS, int numrects, SDL_Rect * rects);
+static void VGL_BankedUpdate (_THIS, int numrects, SDL_Rect * rects);
 
-SDL_Surface *VGL_SetVideoMode(_THIS, SDL_Surface *current,
-			      int width, int height, int bpp, Uint32 flags)
+SDL_Surface *
+VGL_SetVideoMode (_THIS, SDL_Surface * current,
+                  int width, int height, int bpp, Uint32 flags)
 {
-	int mode_found;
-	int i;
-	VGLMode **modes;
+    int mode_found;
+    int i;
+    VGLMode **modes;
 
-	modes = VGLListModes(bpp, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
-	mode_found = 0;
-	for (i = 0; modes[i] != NULL; i++) {
-		if ((modes[i]->ModeInfo.Xsize == width) &&
-		    (modes[i]->ModeInfo.Ysize == height) &&
-		    ((modes[i]->ModeInfo.Type == VIDBUF8) ||
-		     (modes[i]->ModeInfo.Type == VIDBUF16) ||
-		     (modes[i]->ModeInfo.Type == VIDBUF32))) {
-			mode_found = 1;
-			break;
-		}
-	}
-	if (mode_found == 0) {
-		SDL_SetError("No matching video mode found");
-		return NULL;
-	}
+    modes = VGLListModes (bpp, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
+    mode_found = 0;
+    for (i = 0; modes[i] != NULL; i++) {
+        if ((modes[i]->ModeInfo.Xsize == width) &&
+            (modes[i]->ModeInfo.Ysize == height) &&
+            ((modes[i]->ModeInfo.Type == VIDBUF8) ||
+             (modes[i]->ModeInfo.Type == VIDBUF16) ||
+             (modes[i]->ModeInfo.Type == VIDBUF32))) {
+            mode_found = 1;
+            break;
+        }
+    }
+    if (mode_found == 0) {
+        SDL_SetError ("No matching video mode found");
+        return NULL;
+    }
 
-	/* Shutdown previous videomode (if any) */
-	if (VGLCurMode != NULL)
-		VGLEnd();
+    /* Shutdown previous videomode (if any) */
+    if (VGLCurMode != NULL)
+        VGLEnd ();
 
-	/* Try to set the requested linear video mode */
-	if (VGLInit(modes[i]->ModeId) != 0) {
-		SDL_SetError("Unable to switch to requested mode");
-		return NULL;
-	}
+    /* Try to set the requested linear video mode */
+    if (VGLInit (modes[i]->ModeId) != 0) {
+        SDL_SetError ("Unable to switch to requested mode");
+        return NULL;
+    }
 
-	VGLCurMode = SDL_realloc(VGLCurMode, sizeof(VGLMode));
-	VGLCurMode->ModeInfo = *VGLDisplay;
-	VGLCurMode->Depth = modes[i]->Depth;
-	VGLCurMode->ModeId = modes[i]->ModeId;
-	VGLCurMode->Rmask = modes[i]->Rmask;
-	VGLCurMode->Gmask = modes[i]->Gmask;
-	VGLCurMode->Bmask = modes[i]->Bmask;
+    VGLCurMode = SDL_realloc (VGLCurMode, sizeof (VGLMode));
+    VGLCurMode->ModeInfo = *VGLDisplay;
+    VGLCurMode->Depth = modes[i]->Depth;
+    VGLCurMode->ModeId = modes[i]->ModeId;
+    VGLCurMode->Rmask = modes[i]->Rmask;
+    VGLCurMode->Gmask = modes[i]->Gmask;
+    VGLCurMode->Bmask = modes[i]->Bmask;
 
-	/* Workaround a bug in libvgl */
-	if (VGLCurMode->ModeInfo.PixelBytes == 0)
-		(VGLCurMode->ModeInfo.PixelBytes = 1);
+    /* Workaround a bug in libvgl */
+    if (VGLCurMode->ModeInfo.PixelBytes == 0)
+        (VGLCurMode->ModeInfo.PixelBytes = 1);
 
-	current->w = VGLCurMode->ModeInfo.Xsize;
-	current->h = VGLCurMode->ModeInfo.Ysize;
-	current->pixels = VGLCurMode->ModeInfo.Bitmap;
-	current->pitch = VGLCurMode->ModeInfo.Xsize *
-			 VGLCurMode->ModeInfo.PixelBytes;
-	current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE);
+    current->w = VGLCurMode->ModeInfo.Xsize;
+    current->h = VGLCurMode->ModeInfo.Ysize;
+    current->pixels = VGLCurMode->ModeInfo.Bitmap;
+    current->pitch = VGLCurMode->ModeInfo.Xsize *
+        VGLCurMode->ModeInfo.PixelBytes;
+    current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE);
 
-	/* Check if we are in a pseudo-color mode */
-	if (VGLCurMode->ModeInfo.Type == VIDBUF8)
-		current->flags |= SDL_HWPALETTE;
+    /* Check if we are in a pseudo-color mode */
+    if (VGLCurMode->ModeInfo.Type == VIDBUF8)
+        current->flags |= SDL_HWPALETTE;
 
-	/* Check if we can do doublebuffering */
-	if (flags & SDL_DOUBLEBUF) {
-		if (VGLCurMode->ModeInfo.Xsize * 2 <=
-		    VGLCurMode->ModeInfo.VYsize) {
-			current->flags |= SDL_DOUBLEBUF;
-			flip_page = 0;
-			flip_address[0] = (byte *)current->pixels;
-			flip_address[1] = (byte *)current->pixels +
-					  current->h * current->pitch;
-			VGL_FlipHWSurface(this, current);
-		}
-	}
+    /* Check if we can do doublebuffering */
+    if (flags & SDL_DOUBLEBUF) {
+        if (VGLCurMode->ModeInfo.Xsize * 2 <= VGLCurMode->ModeInfo.VYsize) {
+            current->flags |= SDL_DOUBLEBUF;
+            flip_page = 0;
+            flip_address[0] = (byte *) current->pixels;
+            flip_address[1] = (byte *) current->pixels +
+                current->h * current->pitch;
+            VGL_FlipHWSurface (this, current);
+        }
+    }
 
-	if (! SDL_ReallocFormat(current, modes[i]->Depth, VGLCurMode->Rmask,
-				VGLCurMode->Gmask, VGLCurMode->Bmask, 0)) {
-		return NULL;
-	}
+    if (!SDL_ReallocFormat (current, modes[i]->Depth, VGLCurMode->Rmask,
+                            VGLCurMode->Gmask, VGLCurMode->Bmask, 0)) {
+        return NULL;
+    }
 
-	/* Update hardware acceleration info */
-	VGL_UpdateVideoInfo(this);
+    /* Update hardware acceleration info */
+    VGL_UpdateVideoInfo (this);
 
-	/* Set the blit function */
-	this->UpdateRects = VGL_DirectUpdate;
+    /* Set the blit function */
+    this->UpdateRects = VGL_DirectUpdate;
 
-	/* We're done */
-	return current;
+    /* We're done */
+    return current;
 }
 
 /* We don't actually allow hardware surfaces other than the main one */
-static int VGL_AllocHWSurface(_THIS, SDL_Surface *surface)
+static int
+VGL_AllocHWSurface (_THIS, SDL_Surface * surface)
 {
-	return -1;
+    return -1;
 }
-static void VGL_FreeHWSurface(_THIS, SDL_Surface *surface)
+static void
+VGL_FreeHWSurface (_THIS, SDL_Surface * surface)
 {
-	return;
+    return;
 }
 
 /* We need to wait for vertical retrace on page flipped displays */
-static int VGL_LockHWSurface(_THIS, SDL_Surface *surface)
+static int
+VGL_LockHWSurface (_THIS, SDL_Surface * surface)
 {
-	if (surface == SDL_VideoSurface) {
-		SDL_mutexP(hw_lock);
-	}
-	return 0;
+    if (surface == SDL_VideoSurface) {
+        SDL_mutexP (hw_lock);
+    }
+    return 0;
 }
-static void VGL_UnlockHWSurface(_THIS, SDL_Surface *surface)
+static void
+VGL_UnlockHWSurface (_THIS, SDL_Surface * surface)
 {
-	if (surface == SDL_VideoSurface) {
-		SDL_mutexV(hw_lock);
-	}
+    if (surface == SDL_VideoSurface) {
+        SDL_mutexV (hw_lock);
+    }
 }
 
-static int VGL_FlipHWSurface(_THIS, SDL_Surface *surface)
+static int
+VGL_FlipHWSurface (_THIS, SDL_Surface * surface)
 {
-//	VGLWaitRetrace();
-	if (VGLPanScreen(VGLDisplay, 0, flip_page * surface->h) < 0) {
-		SDL_SetError("VGLPanSreen() failed");
-                return -1;
-        }
+//      VGLWaitRetrace();
+    if (VGLPanScreen (VGLDisplay, 0, flip_page * surface->h) < 0) {
+        SDL_SetError ("VGLPanSreen() failed");
+        return -1;
+    }
 
-	flip_page = !flip_page;
-	surface->pixels = flip_address[flip_page];
+    flip_page = !flip_page;
+    surface->pixels = flip_address[flip_page];
 
-	return 0;
+    return 0;
 }
 
-static void VGL_DirectUpdate(_THIS, int numrects, SDL_Rect *rects)
+static void
+VGL_DirectUpdate (_THIS, int numrects, SDL_Rect * rects)
 {
-	return;
+    return;
 }
 
-static void VGL_BankedUpdate(_THIS, int numrects, SDL_Rect *rects)
+static void
+VGL_BankedUpdate (_THIS, int numrects, SDL_Rect * rects)
 {
-	return;
+    return;
 }
 
-int VGL_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
+int
+VGL_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color * colors)
 {
-        int i;
+    int i;
 
-	for(i = 0; i < ncolors; i++) {
-	        VGLSetPaletteIndex(firstcolor + i,
-			       colors[i].r>>2,
-			       colors[i].g>>2,
-			       colors[i].b>>2);
-	}
-	return 1;
+    for (i = 0; i < ncolors; i++) {
+        VGLSetPaletteIndex (firstcolor + i,
+                            colors[i].r >> 2,
+                            colors[i].g >> 2, colors[i].b >> 2);
+    }
+    return 1;
 }
 
 /* Note:  If we are terminated, this could be called in the middle of
    another SDL video routine -- notably UpdateRects.
 */
-void VGL_VideoQuit(_THIS)
+void
+VGL_VideoQuit (_THIS)
 {
-	int i, j;
-
-	/* Return the keyboard to the normal state */
-	VGLKeyboardEnd();
+    int i, j;
 
-	/* Reset the console video mode if we actually initialised one */
-	if (VGLCurMode != NULL) {
-		VGLEnd();
-		SDL_free(VGLCurMode);
-		VGLCurMode = NULL;
-	}
+    /* Return the keyboard to the normal state */
+    VGLKeyboardEnd ();
+
+    /* Reset the console video mode if we actually initialised one */
+    if (VGLCurMode != NULL) {
+        VGLEnd ();
+        SDL_free (VGLCurMode);
+        VGLCurMode = NULL;
+    }
 
-	/* Clear the lock mutex */
-	if (hw_lock != NULL) {
-		SDL_DestroyMutex(hw_lock);
-		hw_lock = NULL;
-	}
+    /* Clear the lock mutex */
+    if (hw_lock != NULL) {
+        SDL_DestroyMutex (hw_lock);
+        hw_lock = NULL;
+    }
 
-	/* Free video mode lists */
-	for (i = 0; i < NUM_MODELISTS; i++) {
-		if (SDL_modelist[i] != NULL) {
-			for (j = 0; SDL_modelist[i][j] != NULL; ++j) {
-				SDL_free(SDL_modelist[i][j]);
-			}
-			SDL_free(SDL_modelist[i]);
-			SDL_modelist[i] = NULL;
-		}
-	}
+    /* Free video mode lists */
+    for (i = 0; i < NUM_MODELISTS; i++) {
+        if (SDL_modelist[i] != NULL) {
+            for (j = 0; SDL_modelist[i][j] != NULL; ++j) {
+                SDL_free (SDL_modelist[i][j]);
+            }
+            SDL_free (SDL_modelist[i]);
+            SDL_modelist[i] = NULL;
+        }
+    }
 
-	if ( this->screen && (this->screen->flags & SDL_HWSURFACE) ) {
-	/* Direct screen access, not a memory buffer */
-		this->screen->pixels = NULL;
-	}
+    if (this->screen && (this->screen->flags & SDL_HWSURFACE)) {
+        /* Direct screen access, not a memory buffer */
+        this->screen->pixels = NULL;
+    }
 }
 
 #define VGL_RED_INDEX	0
@@ -501,140 +518,145 @@
 #define VGL_BLUE_INDEX	2
 
 static VGLMode **
-VGLListModes(int depth, int mem_model)
+VGLListModes (int depth, int mem_model)
 {
-  static VGLMode **modes = NULL;
+    static VGLMode **modes = NULL;
 
-  VGLBitmap *vminfop;
-  VGLMode **modesp, *modescp;
-  video_info_t minfo;
-  int adptype, i, modenum;
+    VGLBitmap *vminfop;
+    VGLMode **modesp, *modescp;
+    video_info_t minfo;
+    int adptype, i, modenum;
 
-  if (modes == NULL) {
-    modes = SDL_malloc(sizeof(VGLMode *) * M_VESA_MODE_MAX);
-    bzero(modes, sizeof(VGLMode *) * M_VESA_MODE_MAX);
-  }
-  modesp = modes;
+    if (modes == NULL) {
+        modes = SDL_malloc (sizeof (VGLMode *) * M_VESA_MODE_MAX);
+        bzero (modes, sizeof (VGLMode *) * M_VESA_MODE_MAX);
+    }
+    modesp = modes;
 
-  for (modenum = 0; modenum < M_VESA_MODE_MAX; modenum++) {
-    minfo.vi_mode = modenum;
-    if (ioctl(0, CONS_MODEINFO, &minfo) || ioctl(0, CONS_CURRENT, &adptype))
-      continue;
-    if (minfo.vi_mode != modenum)
-      continue;
-    if ((minfo.vi_flags & V_INFO_GRAPHICS) == 0)
-      continue;
-    if ((mem_model != -1) && ((minfo.vi_mem_model & mem_model) == 0))
-      continue;
-    if ((depth > 1) && (minfo.vi_depth != depth))
-      continue;
+    for (modenum = 0; modenum < M_VESA_MODE_MAX; modenum++) {
+        minfo.vi_mode = modenum;
+        if (ioctl (0, CONS_MODEINFO, &minfo)
+            || ioctl (0, CONS_CURRENT, &adptype))
+            continue;
+        if (minfo.vi_mode != modenum)
+            continue;
+        if ((minfo.vi_flags & V_INFO_GRAPHICS) == 0)
+            continue;
+        if ((mem_model != -1) && ((minfo.vi_mem_model & mem_model) == 0))
+            continue;
+        if ((depth > 1) && (minfo.vi_depth != depth))
+            continue;
 
-    /* reallocf can fail */
-    if ((*modesp = reallocf(*modesp, sizeof(VGLMode))) == NULL)
-      return NULL;
-    modescp = *modesp;
+        /* reallocf can fail */
+        if ((*modesp = reallocf (*modesp, sizeof (VGLMode))) == NULL)
+            return NULL;
+        modescp = *modesp;
 
-    vminfop = &(modescp->ModeInfo);
-    bzero(vminfop, sizeof(VGLBitmap));
+        vminfop = &(modescp->ModeInfo);
+        bzero (vminfop, sizeof (VGLBitmap));
 
-    vminfop->Type = NOBUF;
+        vminfop->Type = NOBUF;
 
-    vminfop->PixelBytes = 1;	/* Good default value */
-    switch (minfo.vi_mem_model) {
-    case V_INFO_MM_PLANAR:
-      /* we can handle EGA/VGA planar modes only */
-      if (!(minfo.vi_depth != 4 || minfo.vi_planes != 4
-	    || (adptype != KD_EGA && adptype != KD_VGA)))
-	vminfop->Type = VIDBUF4;
-      break;
-    case V_INFO_MM_PACKED:
-      /* we can do only 256 color packed modes */
-      if (minfo.vi_depth == 8)
-	vminfop->Type = VIDBUF8;
-      break;
-    case V_INFO_MM_VGAX:
-      vminfop->Type = VIDBUF8X;
-      break;
+        vminfop->PixelBytes = 1;        /* Good default value */
+        switch (minfo.vi_mem_model) {
+        case V_INFO_MM_PLANAR:
+            /* we can handle EGA/VGA planar modes only */
+            if (!(minfo.vi_depth != 4 || minfo.vi_planes != 4
+                  || (adptype != KD_EGA && adptype != KD_VGA)))
+                vminfop->Type = VIDBUF4;
+            break;
+        case V_INFO_MM_PACKED:
+            /* we can do only 256 color packed modes */
+            if (minfo.vi_depth == 8)
+                vminfop->Type = VIDBUF8;
+            break;
+        case V_INFO_MM_VGAX:
+            vminfop->Type = VIDBUF8X;
+            break;
 #if defined(__FREEBSD__) && (defined(__DragonFly__) || __FreeBSD_version >= 500000)
-    case V_INFO_MM_DIRECT:
-      vminfop->PixelBytes = minfo.vi_pixel_size;
-      switch (vminfop->PixelBytes) {
-      case 2:
-	vminfop->Type = VIDBUF16;
-	break;
+        case V_INFO_MM_DIRECT:
+            vminfop->PixelBytes = minfo.vi_pixel_size;
+            switch (vminfop->PixelBytes) {
+            case 2:
+                vminfop->Type = VIDBUF16;
+                break;
 #if notyet
-      case 3:
-	vminfop->Type = VIDBUF24;
-	break;
+            case 3:
+                vminfop->Type = VIDBUF24;
+                break;
 #endif
-      case 4:
-	vminfop->Type = VIDBUF32;
-	break;
-      default:
-	break;
-      }
+            case 4:
+                vminfop->Type = VIDBUF32;
+                break;
+            default:
+                break;
+            }
 #endif
-    default:
-      break;
-    }
-    if (vminfop->Type == NOBUF)
-      continue;
+        default:
+            break;
+        }
+        if (vminfop->Type == NOBUF)
+            continue;
+
+        switch (vminfop->Type) {
+        case VIDBUF16:
+        case VIDBUF32:
+            modescp->Rmask =
+                ((1 << minfo.vi_pixel_fsizes[VGL_RED_INDEX]) -
+                 1) << minfo.vi_pixel_fields[VGL_RED_INDEX];
+            modescp->Gmask =
+                ((1 << minfo.vi_pixel_fsizes[VGL_GREEN_INDEX]) -
+                 1) << minfo.vi_pixel_fields[VGL_GREEN_INDEX];
+            modescp->Bmask =
+                ((1 << minfo.vi_pixel_fsizes[VGL_BLUE_INDEX]) -
+                 1) << minfo.vi_pixel_fields[VGL_BLUE_INDEX];
+            break;
+
+        default:
+            break;
+        }
 
-    switch (vminfop->Type) {
-    case VIDBUF16:
-    case VIDBUF32:
-      modescp->Rmask = ((1 << minfo.vi_pixel_fsizes[VGL_RED_INDEX]) - 1) <<
-		       minfo.vi_pixel_fields[VGL_RED_INDEX];
-      modescp->Gmask = ((1 << minfo.vi_pixel_fsizes[VGL_GREEN_INDEX]) - 1) <<
-		       minfo.vi_pixel_fields[VGL_GREEN_INDEX];
-      modescp->Bmask = ((1 << minfo.vi_pixel_fsizes[VGL_BLUE_INDEX]) - 1) <<
-		       minfo.vi_pixel_fields[VGL_BLUE_INDEX];
-      break;
+        vminfop->Xsize = minfo.vi_width;
+        vminfop->Ysize = minfo.vi_height;
+        modescp->Depth = minfo.vi_depth;
+
+        /* XXX */
+        if (minfo.vi_mode >= M_VESA_BASE)
+            modescp->ModeId = _IO ('V', minfo.vi_mode - M_VESA_BASE);
+        else
+            modescp->ModeId = _IO ('S', minfo.vi_mode);
 
-    default:
-      break;
+        /* Sort list */
+        for (i = 0; modes + i < modesp; i++) {
+            if (modes[i]->ModeInfo.Xsize * modes[i]->ModeInfo.Ysize >
+                vminfop->Xsize * modes[i]->ModeInfo.Ysize)
+                continue;
+            if ((modes[i]->ModeInfo.Xsize * modes[i]->ModeInfo.Ysize ==
+                 vminfop->Xsize * vminfop->Ysize) &&
+                (modes[i]->Depth >= modescp->Depth))
+                continue;
+            *modesp = modes[i];
+            modes[i] = modescp;
+            modescp = *modesp;
+            vminfop = &(modescp->ModeInfo);
+        }
+
+        modesp++;
     }
 
-    vminfop->Xsize = minfo.vi_width;
-    vminfop->Ysize = minfo.vi_height;
-    modescp->Depth = minfo.vi_depth;
-
-    /* XXX */
-    if (minfo.vi_mode >= M_VESA_BASE)
-      modescp->ModeId = _IO('V', minfo.vi_mode - M_VESA_BASE);
-    else
-      modescp->ModeId = _IO('S', minfo.vi_mode);
-
-    /* Sort list */
-    for (i = 0; modes + i < modesp ; i++) {
-      if (modes[i]->ModeInfo.Xsize * modes[i]->ModeInfo.Ysize >
-	  vminfop->Xsize * modes[i]->ModeInfo.Ysize)
-	continue;
-      if ((modes[i]->ModeInfo.Xsize * modes[i]->ModeInfo.Ysize ==
-	   vminfop->Xsize * vminfop->Ysize) &&
-	  (modes[i]->Depth >= modescp->Depth))
-	continue;
-      *modesp = modes[i];
-      modes[i] = modescp;
-      modescp = *modesp;
-      vminfop = &(modescp->ModeInfo);
+    if (*modesp != NULL) {
+        SDL_free (*modesp);
+        *modesp = NULL;
     }
 
-    modesp++;
-  }
-
-  if (*modesp != NULL) {
-    SDL_free(*modesp);
-    *modesp = NULL;
-  }
-
-  return modes;
+    return modes;
 }
 
 static void
-VGLWaitRetrace(void)
+VGLWaitRetrace (void)
 {
-  while (!(inb(0x3DA) & 8));
-  while (inb(0x3DA) & 8);
+    while (!(inb (0x3DA) & 8));
+    while (inb (0x3DA) & 8);
 }
 
+/* vi: set ts=4 sw=4 expandtab: */