/*    SDL - Simple DirectMedia Layer    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  Sam Lantinga    This library is free software; you can redistribute it and/or    modify it under the terms of the GNU Library General Public    License as published by the Free Software Foundation; either    version 2 of the License, or (at your option) any later version.    This library 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    Library General Public License for more details.    You should have received a copy of the GNU Library General Public    License along with this library; if not, write to the Free    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA    Sam Lantinga    slouken@libsdl.org*/#ifdef SAVE_RCSIDstatic char rcsid = "@(#) $Id: SDL_sysvideo.cc,v 1.7 2002/03/06 11:23:03 slouken Exp $";#endif/* BWindow based framebuffer implementation */#include <stdlib.h>#include <string.h>#include <stdio.h>#include <unistd.h>#include "SDL.h"#include "SDL_BeApp.h"#include "SDL_BWin.h"#include "SDL_timer.h"#include "blank_cursor.h"extern "C" {#include "SDL_sysvideo.h"#include "SDL_sysmouse_c.h"#include "SDL_sysevents_c.h"#include "SDL_events_c.h"#include "SDL_syswm_c.h"#include "SDL_lowvideo.h"#define BEOS_HIDDEN_SIZE	32	/* starting hidden window size *//* Initialization/Query functions */static int BE_VideoInit(_THIS, SDL_PixelFormat *vformat);static SDL_Rect **BE_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);static SDL_Surface *BE_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);static void BE_UpdateMouse(_THIS);static int BE_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);static void BE_VideoQuit(_THIS);/* Hardware surface functions */static int BE_AllocHWSurface(_THIS, SDL_Surface *surface);static int BE_LockHWSurface(_THIS, SDL_Surface *surface);static void BE_UnlockHWSurface(_THIS, SDL_Surface *surface);static void BE_FreeHWSurface(_THIS, SDL_Surface *surface);static int BE_ToggleFullScreen(_THIS, int fullscreen);/* OpenGL functions */#ifdef HAVE_OPENGLstatic void BE_GL_SwapBuffers(_THIS);#endif/* FB driver bootstrap functions */static int BE_Available(void){	return(1);}static void BE_DeleteDevice(SDL_VideoDevice *device){	free(device->hidden);	free(device);}static SDL_VideoDevice *BE_CreateDevice(int devindex){	SDL_VideoDevice *device;	/* Initialize all variables that we clean on shutdown */	device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));	if ( device ) {		memset(device, 0, (sizeof *device));		device->hidden = (struct SDL_PrivateVideoData *)				malloc((sizeof *device->hidden));	}	if ( (device == NULL) || (device->hidden == NULL) ) {		SDL_OutOfMemory();		if ( device ) {			free(device);		}		return(0);	}	memset(device->hidden, 0, (sizeof *device->hidden));	/* Set the function pointers */	device->VideoInit = BE_VideoInit;	device->ListModes = BE_ListModes;	device->SetVideoMode = BE_SetVideoMode;	device->UpdateMouse = BE_UpdateMouse;	device->SetColors = BE_SetColors;	device->UpdateRects = NULL;	device->VideoQuit = BE_VideoQuit;	device->AllocHWSurface = BE_AllocHWSurface;	device->CheckHWBlit = NULL;	device->FillHWRect = NULL;	device->SetHWColorKey = NULL;	device->SetHWAlpha = NULL;	device->LockHWSurface = BE_LockHWSurface;	device->UnlockHWSurface = BE_UnlockHWSurface;	device->FlipHWSurface = NULL;	device->FreeHWSurface = BE_FreeHWSurface;#ifdef HAVE_OPENGL	device->GL_SwapBuffers = BE_GL_SwapBuffers;#endif	device->SetIcon = NULL;	device->SetCaption = BE_SetWMCaption;	device->GetWMInfo = NULL;	device->FreeWMCursor = BE_FreeWMCursor;	device->CreateWMCursor = BE_CreateWMCursor;	device->ShowWMCursor = BE_ShowWMCursor;	device->WarpWMCursor = BE_WarpWMCursor;	device->InitOSKeymap = BE_InitOSKeymap;	device->PumpEvents = BE_PumpEvents;	device->free = BE_DeleteDevice;	device->ToggleFullScreen = BE_ToggleFullScreen;	/* Set the driver flags */	device->handles_any_size = 1;		return device;}VideoBootStrap BWINDOW_bootstrap = {	"bwindow", "BDirectWindow graphics",	BE_Available, BE_CreateDevice};static inline int ColorSpaceToBitsPerPixel(uint32 colorspace){	int bitsperpixel;	bitsperpixel = 0;	switch (colorspace) {	    case B_CMAP8:		bitsperpixel = 8;		break;	    case B_RGB15:	    case B_RGBA15:	    case B_RGB15_BIG:	    case B_RGBA15_BIG:		bitsperpixel = 15;		break;	    case B_RGB16:	    case B_RGB16_BIG:		bitsperpixel = 16;		break;	    case B_RGB32:	    case B_RGBA32:	    case B_RGB32_BIG:	    case B_RGBA32_BIG:		bitsperpixel = 32;		break;	    default:		break;	}	return(bitsperpixel);}/* Function to sort the display_list in bscreen */static int CompareModes(const void *A, const void *B){	const display_mode *a = (display_mode *)A;	const display_mode *b = (display_mode *)B;	if ( a->space == b->space ) {		return((b->virtual_width*b->virtual_height)-		       (a->virtual_width*a->virtual_height));	} else {		return(ColorSpaceToBitsPerPixel(b->space)-		       ColorSpaceToBitsPerPixel(a->space));	}}/* Yes, this isn't the fastest it could be, but it works nicely */static int BE_AddMode(_THIS, int index, unsigned int w, unsigned int h){	SDL_Rect *mode;	int i;	int next_mode;	/* Check to see if we already have this mode */	if ( SDL_nummodes[index] > 0 ) {		for ( i=SDL_nummodes[index]-1; i >= 0; --i ) {			mode = SDL_modelist[index][i];			if ( (mode->w == w) && (mode->h == h) ) {#ifdef BWINDOW_DEBUG				fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1);#endif				return(0);			}		}	}	/* Set up the new video mode rectangle */	mode = (SDL_Rect *)malloc(sizeof *mode);	if ( mode == NULL ) {		SDL_OutOfMemory();		return(-1);	}	mode->x = 0;	mode->y = 0;	mode->w = w;	mode->h = h;#ifdef BWINDOW_DEBUG	fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1);#endif	/* Allocate the new list of modes, and fill in the new mode */	next_mode = SDL_nummodes[index];	SDL_modelist[index] = (SDL_Rect **)	       realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *));	if ( SDL_modelist[index] == NULL ) {		SDL_OutOfMemory();		SDL_nummodes[index] = 0;		free(mode);		return(-1);	}	SDL_modelist[index][next_mode] = mode;	SDL_modelist[index][next_mode+1] = NULL;	SDL_nummodes[index]++;	return(0);}int BE_VideoInit(_THIS, SDL_PixelFormat *vformat){	display_mode *modes;	uint32 i, nmodes;	int bpp;	BRect bounds;	/* Initialize the Be Application for appserver interaction */	if ( SDL_InitBeApp() < 0 ) {		return(-1);	}	/* It is important that this be created after SDL_InitBeApp() */	BScreen bscreen;	/* Save the current display mode */	bscreen.GetMode(&saved_mode);	/* Determine the screen depth */	vformat->BitsPerPixel = ColorSpaceToBitsPerPixel(bscreen.ColorSpace());	if ( vformat->BitsPerPixel == 0 ) {		SDL_SetError("Unknown BScreen colorspace: 0x%x",						bscreen.ColorSpace());		return(-1);	}	/* Get the video modes we can switch to in fullscreen mode */	bscreen.GetModeList(&modes, &nmodes);	qsort(modes, nmodes, sizeof *modes, CompareModes);	for ( i=0; i<nmodes; ++i ) {		bpp = ColorSpaceToBitsPerPixel(modes[i].space);		//if ( bpp != 0 ) { // There are bugs in changing colorspace		if ( modes[i].space == saved_mode.space ) {			BE_AddMode(_this, ((bpp+7)/8)-1,				modes[i].virtual_width,				modes[i].virtual_height);		}	}	/* Create the window and view */	bounds.top = 0; bounds.left = 0;	bounds.right = BEOS_HIDDEN_SIZE;	bounds.bottom = BEOS_HIDDEN_SIZE;	SDL_Win = new SDL_BWin(bounds);	/* Create the clear cursor */	SDL_BlankCursor = BE_CreateWMCursor(_this, blank_cdata, blank_cmask,			BLANK_CWIDTH, BLANK_CHEIGHT, BLANK_CHOTX, BLANK_CHOTY);	/* Fill in some window manager capabilities */	_this->info.wm_available = 1;	/* We're done! */	return(0);}/* We support any dimension at our bit-depth */SDL_Rect **BE_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags){	SDL_Rect **modes;	modes = ((SDL_Rect **)0);	if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {		modes = SDL_modelist[((format->BitsPerPixel+7)/8)-1];	} else {		if ( format->BitsPerPixel ==			_this->screen->format->BitsPerPixel ) {