src/video/dga/SDL_dgavideo.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 30 Sep 2001 20:19:20 +0000
changeset 202 401f0134f4f9
parent 105 2136ea8953f9
child 252 e8157fcb3114
permissions -rw-r--r--
Fixed crash when using double-buffering with DGA
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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	SDL - Simple DirectMedia Layer
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	Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
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	This library is free software; you can redistribute it and/or
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	modify it under the terms of the GNU Library General Public
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	License as published by the Free Software Foundation; either
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	version 2 of the License, or (at your option) any later version.
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	This library is distributed in the hope that it will be useful,
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	but WITHOUT ANY WARRANTY; without even the implied warranty of
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	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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	Library General Public License for more details.
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	You should have received a copy of the GNU Library General Public
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	License along with this library; if not, write to the Free
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	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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	Sam Lantinga
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	slouken@devolution.com
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*/
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#ifdef SAVE_RCSID
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static char rcsid =
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 "@(#) $Id$";
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#endif
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/* DGA 2.0 based SDL video driver implementation.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <X11/Xlib.h>
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#include <X11/extensions/xf86dga.h>
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#ifdef HAVE_ALLOCA_H
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#include <alloca.h>
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#endif
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#include "SDL.h"
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#include "SDL_error.h"
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#include "SDL_video.h"
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#include "SDL_mouse.h"
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#include "SDL_sysvideo.h"
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#include "SDL_pixels_c.h"
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#include "SDL_events_c.h"
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#include "SDL_dgavideo.h"
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#include "SDL_dgamouse_c.h"
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#include "SDL_dgaevents_c.h"
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/* Initialization/Query functions */
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static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat);
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static SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
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static SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
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static int DGA_SetColors(_THIS, int firstcolor, int ncolors,
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			 SDL_Color *colors);
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static int DGA_SetGammaRamp(_THIS, Uint16 *ramp);
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static void DGA_VideoQuit(_THIS);
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/* Hardware surface functions */
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static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size);
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static void DGA_FreeHWSurfaces(_THIS);
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static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface);
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static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color);
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static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst);
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static int DGA_LockHWSurface(_THIS, SDL_Surface *surface);
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static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface);
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static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface);
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static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface);
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/* DGA driver bootstrap functions */
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static int DGA_Available(void)
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{
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	const char *display;
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	Display *dpy;
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	int available;
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	/* The driver is available is available if the display is local
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	   and the DGA 2.0+ extension is available, and we can map mem.
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	*/
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	available = 0;
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	display = NULL;
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	if ( (strncmp(XDisplayName(display), ":", 1) == 0) ||
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	     (strncmp(XDisplayName(display), "unix:", 5) == 0) ) {
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		dpy = XOpenDisplay(display);
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		if ( dpy ) {
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			int events, errors, major, minor;
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			if ( XDGAQueryExtension(dpy, &events, &errors) &&
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			     XDGAQueryVersion(dpy, &major, &minor) ) {
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				int screen;
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				screen = DefaultScreen(dpy);
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				if ( (major >= 2) && 
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				     XDGAOpenFramebuffer(dpy, screen) ) {
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					available = 1;
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					XDGACloseFramebuffer(dpy, screen);
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				}
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			}
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			XCloseDisplay(dpy);
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		}
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	}
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	return(available);
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}
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static void DGA_DeleteDevice(SDL_VideoDevice *device)
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{
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	free(device->hidden);
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	free(device);
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}
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static SDL_VideoDevice *DGA_CreateDevice(int devindex)
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{
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	SDL_VideoDevice *device;
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	/* Initialize all variables that we clean on shutdown */
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	device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));
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	if ( device ) {
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		memset(device, 0, (sizeof *device));
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		device->hidden = (struct SDL_PrivateVideoData *)
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				malloc((sizeof *device->hidden));
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	}
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	if ( (device == NULL) || (device->hidden == NULL) ) {
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		SDL_OutOfMemory();
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		if ( device ) {
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			free(device);
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		}
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		return(0);
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	}
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	memset(device->hidden, 0, (sizeof *device->hidden));
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	/* Set the function pointers */
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	device->VideoInit = DGA_VideoInit;
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	device->ListModes = DGA_ListModes;
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	device->SetVideoMode = DGA_SetVideoMode;
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	device->SetColors = DGA_SetColors;
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	device->UpdateRects = NULL;
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	device->VideoQuit = DGA_VideoQuit;
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	device->AllocHWSurface = DGA_AllocHWSurface;
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	device->CheckHWBlit = DGA_CheckHWBlit;
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	device->FillHWRect = DGA_FillHWRect;
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	device->SetHWColorKey = NULL;
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	device->SetHWAlpha = NULL;
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	device->LockHWSurface = DGA_LockHWSurface;
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	device->UnlockHWSurface = DGA_UnlockHWSurface;
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	device->FlipHWSurface = DGA_FlipHWSurface;
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	device->FreeHWSurface = DGA_FreeHWSurface;
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	device->SetGammaRamp = DGA_SetGammaRamp;
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	device->GetGammaRamp = NULL;
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	device->SetCaption = NULL;
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	device->SetIcon = NULL;
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	device->IconifyWindow = NULL;
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	device->GrabInput = NULL;
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	device->GetWMInfo = NULL;
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	device->InitOSKeymap = DGA_InitOSKeymap;
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	device->PumpEvents = DGA_PumpEvents;
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	device->free = DGA_DeleteDevice;
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	return device;
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}
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VideoBootStrap DGA_bootstrap = {
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	"dga", "XFree86 DGA 2.0",
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	DGA_Available, DGA_CreateDevice
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};
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   168
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static int DGA_AddMode(_THIS, int bpp, int w, int h)
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{
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	SDL_Rect *mode;
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	int i, index;
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	int next_mode;
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	/* Check to see if we already have this mode */
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	if ( bpp < 8 ) {  /* Not supported */
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		return(0);
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	}
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	index = ((bpp+7)/8)-1;
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	for ( i=0; i<SDL_nummodes[index]; ++i ) {
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		mode = SDL_modelist[index][i];
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		if ( (mode->w == w) && (mode->h == h) ) {
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			return(0);
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		}
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	}
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	/* Set up the new video mode rectangle */
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	mode = (SDL_Rect *)malloc(sizeof *mode);
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	if ( mode == NULL ) {
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		SDL_OutOfMemory();
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		return(-1);
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	}
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	mode->x = 0;
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	mode->y = 0;
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	mode->w = w;
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	mode->h = h;
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   197
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	/* Allocate the new list of modes, and fill in the new mode */
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	next_mode = SDL_nummodes[index];
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	SDL_modelist[index] = (SDL_Rect **)
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	       realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *));
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	if ( SDL_modelist[index] == NULL ) {
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		SDL_OutOfMemory();
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		SDL_nummodes[index] = 0;
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		free(mode);
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		return(-1);
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   207
	}
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	SDL_modelist[index][next_mode] = mode;
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	SDL_modelist[index][next_mode+1] = NULL;
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	SDL_nummodes[index]++;
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diff changeset
   211
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   212
	return(0);
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   213
}
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   214
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/* This whole function is a hack. :) */
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static Uint32 get_video_size(_THIS)
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{
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	/* This is a non-exported function from libXxf86dga.a */
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   219
	extern unsigned char *XDGAGetMappedMemory(int screen);
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	FILE *proc;
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   221
	unsigned long mem;
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   222
	unsigned start, stop;
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   223
	char line[BUFSIZ];
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   224
	Uint32 size;
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diff changeset
   225
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   226
	mem = (unsigned long)XDGAGetMappedMemory(DGA_Screen);
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   227
	size = 0;
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   228
	proc = fopen("/proc/self/maps", "r");
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   229
	if ( proc ) {
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   230
		while ( fgets(line, sizeof(line)-1, proc) ) {
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   231
			sscanf(line, "%x-%x", &start, &stop);
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   232
			if ( start == mem ) {
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   233
				size = (Uint32)((stop-start)/1024);
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   234
				break;
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diff changeset
   235
			}
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diff changeset
   236
		}
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   237
		fclose(proc);
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diff changeset
   238
	}
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   239
	return(size);
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diff changeset
   240
}
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diff changeset
   241
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   242
#ifdef DGA_DEBUG
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   243
static void PrintMode(XDGAMode *mode)
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   244
{
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   245
	printf("Mode: %s (%dx%d) at %d bpp (%f refresh, %d pitch) num: %d\n",
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   246
		mode->name,
74212992fb08 Initial revision
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diff changeset
   247
		mode->viewportWidth, mode->viewportHeight,
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   248
		mode->depth == 24 ? mode->bitsPerPixel : mode->depth,
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   249
		mode->verticalRefresh, mode->bytesPerScanline, mode->num);
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   250
	printf("\tRGB: 0x%8.8x 0x%8.8x 0x%8.8x (%d - %s)\n",
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   251
		mode->redMask, mode->greenMask, mode->blueMask,
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   252
		mode->visualClass,
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   253
		mode->visualClass == TrueColor ? "truecolor" :
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   254
		mode->visualClass == DirectColor ? "directcolor" :
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   255
		mode->visualClass == PseudoColor ? "pseudocolor" : "unknown");
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diff changeset
   256
	printf("\tFlags: ");
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diff changeset
   257
	if ( mode->flags & XDGAConcurrentAccess )
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   258
		printf(" XDGAConcurrentAccess");
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diff changeset
   259
	if ( mode->flags & XDGASolidFillRect )
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   260
		printf(" XDGASolidFillRect");
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diff changeset
   261
	if ( mode->flags & XDGABlitRect )
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   262
		printf(" XDGABlitRect");
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diff changeset
   263
	if ( mode->flags & XDGABlitTransRect )
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diff changeset
   264
		printf(" XDGABlitTransRect");
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diff changeset
   265
	if ( mode->flags & XDGAPixmap )
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diff changeset
   266
		printf(" XDGAPixmap");
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diff changeset
   267
	if ( mode->flags & XDGAInterlaced )
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diff changeset
   268
		printf(" XDGAInterlaced");
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diff changeset
   269
	if ( mode->flags & XDGADoublescan )
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diff changeset
   270
		printf(" XDGADoublescan");
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diff changeset
   271
	if ( mode->viewportFlags & XDGAFlipRetrace )
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diff changeset
   272
		printf(" XDGAFlipRetrace");
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diff changeset
   273
	if ( mode->viewportFlags & XDGAFlipImmediate )
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diff changeset
   274
		printf(" XDGAFlipImmediate");
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diff changeset
   275
	printf("\n");
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parents:
diff changeset
   276
}
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diff changeset
   277
#endif /* DGA_DEBUG */
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diff changeset
   278
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   279
static int cmpmodes(const void *va, const void *vb)
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diff changeset
   280
{
91
e85e03f195b4 From: "Markus F.X.J. Oberhumer"
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parents: 0
diff changeset
   281
    const XDGAMode *a = (const XDGAMode *)va;
e85e03f195b4 From: "Markus F.X.J. Oberhumer"
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parents: 0
diff changeset
   282
    const XDGAMode *b = (const XDGAMode *)vb;
0
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parents:
diff changeset
   283
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diff changeset
   284
    /* Prefer DirectColor visuals for otherwise equal modes */
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parents:
diff changeset
   285
    if ( (a->viewportWidth == b->viewportWidth) &&
74212992fb08 Initial revision
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parents:
diff changeset
   286
         (b->viewportHeight == a->viewportHeight) ) {
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parents:
diff changeset
   287
         if ( a->visualClass == DirectColor )
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parents:
diff changeset
   288
             return -1;
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parents:
diff changeset
   289
         if ( b->visualClass == DirectColor )
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parents:
diff changeset
   290
             return 1;
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parents:
diff changeset
   291
         return 0;
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parents:
diff changeset
   292
    } else {
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diff changeset
   293
        if(a->viewportWidth > b->viewportWidth)
74212992fb08 Initial revision
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diff changeset
   294
            return -1;
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diff changeset
   295
        return b->viewportHeight - a->viewportHeight;
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parents:
diff changeset
   296
    }
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parents:
diff changeset
   297
}
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diff changeset
   298
static void UpdateHWInfo(_THIS, XDGAMode *mode)
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diff changeset
   299
{
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diff changeset
   300
	this->info.wm_available = 0;
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parents:
diff changeset
   301
	this->info.hw_available = 1;
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parents:
diff changeset
   302
	if ( mode->flags & XDGABlitRect ) {
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parents:
diff changeset
   303
		this->info.blit_hw = 1;
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parents:
diff changeset
   304
	} else {
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diff changeset
   305
		this->info.blit_hw = 0;
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diff changeset
   306
	}
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parents:
diff changeset
   307
	if ( mode->flags & XDGABlitTransRect ) {
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parents:
diff changeset
   308
		this->info.blit_hw_CC = 1;
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parents:
diff changeset
   309
	} else {
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parents:
diff changeset
   310
		this->info.blit_hw_CC = 0;
74212992fb08 Initial revision
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parents:
diff changeset
   311
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   312
	if ( mode->flags & XDGASolidFillRect ) {
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parents:
diff changeset
   313
		this->info.blit_fill = 1;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   314
	} else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   315
		this->info.blit_fill = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   316
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   317
	this->info.video_mem = get_video_size(this);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   318
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   319
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   320
static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   321
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   322
	const char *display;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   323
	int event_base, error_base;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   324
	int major_version, minor_version;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   325
	Visual *visual;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   326
	XDGAMode *modes;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   327
	int i, num_modes;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   328
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   329
	/* Open the X11 display */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   330
	display = NULL;		/* Get it from DISPLAY environment variable */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   331
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   332
	DGA_Display = XOpenDisplay(display);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   333
	if ( DGA_Display == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   334
		SDL_SetError("Couldn't open X11 display");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   335
		return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   336
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   337
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   338
	/* Check for the DGA extension */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   339
	if ( ! XDGAQueryExtension(DGA_Display, &event_base, &error_base) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   340
	     ! XDGAQueryVersion(DGA_Display, &major_version, &minor_version) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   341
		SDL_SetError("DGA extension not available");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   342
		XCloseDisplay(DGA_Display);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   343
		return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   344
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   345
	if ( major_version < 2 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   346
		SDL_SetError("DGA driver requires DGA 2.0 or newer");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   347
		XCloseDisplay(DGA_Display);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   348
		return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   349
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   350
	DGA_event_base = event_base;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   351
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   352
	/* Determine the current screen depth */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   353
	visual = DefaultVisual(DGA_Display, DGA_Screen);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   354
	{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   355
		XPixmapFormatValues *pix_format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   356
		int i, num_formats;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   357
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   358
		vformat->BitsPerPixel = DefaultDepth(DGA_Display, DGA_Screen);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   359
		pix_format = XListPixmapFormats(DGA_Display, &num_formats);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   360
		if ( pix_format == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   361
			SDL_SetError("Couldn't determine screen formats");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   362
			XCloseDisplay(DGA_Display);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   363
			return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   364
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   365
		for ( i=0; i<num_formats; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   366
			if ( vformat->BitsPerPixel == pix_format[i].depth )
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   367
				break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   368
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   369
		if ( i != num_formats )
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   370
			vformat->BitsPerPixel = pix_format[i].bits_per_pixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   371
		XFree((char *)pix_format);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   372
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   373
	if ( vformat->BitsPerPixel > 8 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   374
		vformat->Rmask = visual->red_mask;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   375
		vformat->Gmask = visual->green_mask;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   376
		vformat->Bmask = visual->blue_mask;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   377
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   378
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   379
	/* Open access to the framebuffer */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   380
	if ( ! XDGAOpenFramebuffer(DGA_Display, DGA_Screen) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   381
		SDL_SetError("Unable to map the video memory");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   382
		XCloseDisplay(DGA_Display);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   383
		return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   384
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   385
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   386
	/* Query for the list of available video modes */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   387
	modes = XDGAQueryModes(DGA_Display, DGA_Screen, &num_modes);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   388
	qsort(modes, num_modes, sizeof *modes, cmpmodes);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   389
	for ( i=0; i<num_modes; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   390
#ifdef DGA_DEBUG
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   391
		PrintMode(&modes[i]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   392
#endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   393
		if ( (modes[i].visualClass == PseudoColor) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   394
		     (modes[i].visualClass == DirectColor) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   395
		     (modes[i].visualClass == TrueColor) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   396
			DGA_AddMode(this, modes[i].bitsPerPixel,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   397
			            modes[i].viewportWidth,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   398
			            modes[i].viewportHeight);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   399
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   400
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   401
	UpdateHWInfo(this, modes);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   402
	XFree(modes);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   403
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   404
	/* Create the hardware surface lock mutex */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   405
	hw_lock = SDL_CreateMutex();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   406
	if ( hw_lock == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   407
		SDL_SetError("Unable to create lock mutex");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   408
		DGA_VideoQuit(this);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   409
		return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   410
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   411
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   412
#ifdef LOCK_DGA_DISPLAY
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   413
	/* Create the event lock so we're thread-safe.. :-/ */
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   414
	event_lock = SDL_CreateMutex();
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   415
#endif /* LOCK_DGA_DISPLAY */
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   416
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   417
	/* We're done! */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   418
	return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   419
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   420
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   421
SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   422
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   423
	return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   424
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   425
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   426
/* Various screen update functions available */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   427
static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   428
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   429
SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   430
				int width, int height, int bpp, Uint32 flags)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   431
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   432
	XDGAMode *modes;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   433
	int i, num_modes;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   434
	XDGADevice *mode;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   435
	int screen_len;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   436
	Uint8 *surfaces_mem;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   437
	int surfaces_len;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   438
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   439
	/* Free any previous colormap */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   440
	if ( DGA_colormap ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   441
		XFreeColormap(DGA_Display, DGA_colormap);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   442
		DGA_colormap = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   443
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   444
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   445
	/* Search for a matching video mode */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   446
	modes = XDGAQueryModes(DGA_Display, DGA_Screen, &num_modes);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   447
	qsort(modes, num_modes, sizeof *modes, cmpmodes);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   448
	for ( i=0; i<num_modes; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   449
		int depth;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   450
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   451
		
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   452
		depth = modes[i].depth;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   453
		if ( depth == 24 ) { /* Distinguish between 24 and 32 bpp */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   454
			depth = modes[i].bitsPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   455
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   456
		if ( (depth == bpp) &&
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   457
		     (modes[i].viewportWidth == width) &&
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   458
		     (modes[i].viewportHeight == height) &&
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   459
		     ((modes[i].visualClass == PseudoColor) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   460
		      (modes[i].visualClass == DirectColor) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   461
		      (modes[i].visualClass == TrueColor)) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   462
			break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   463
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   464
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   465
	if ( i == num_modes ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   466
		SDL_SetError("No matching video mode found");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   467
		return(NULL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   468
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   469
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   470
	/* Set the video mode */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   471
	mode = XDGASetMode(DGA_Display, DGA_Screen, modes[i].num);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   472
	XFree(modes);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   473
	if ( mode == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   474
		SDL_SetError("Unable to switch to requested mode");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   475
		return(NULL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   476
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   477
	DGA_visualClass = modes[i].visualClass;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   478
	memory_base = (Uint8 *)mode->data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   479
	memory_pitch = mode->mode.bytesPerScanline;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   480
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   481
	/* Set up the new mode framebuffer */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   482
	current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   483
	current->w = mode->mode.viewportWidth;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   484
	current->h = mode->mode.viewportHeight;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   485
	current->pitch = memory_pitch;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   486
	current->pixels = memory_base;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   487
	if ( ! SDL_ReallocFormat(current, mode->mode.bitsPerPixel,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   488
	                                  mode->mode.redMask,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   489
	                                  mode->mode.greenMask,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   490
	                                  mode->mode.blueMask, 0) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   491
		return(NULL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   492
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   493
	screen_len = current->h*current->pitch;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   494
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   495
	/* Create a colormap if necessary */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   496
	if ( (DGA_visualClass == PseudoColor) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   497
             (DGA_visualClass == DirectColor) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   498
		DGA_colormap = XDGACreateColormap(DGA_Display, DGA_Screen,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   499
							mode, AllocAll);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   500
		if ( DGA_visualClass == PseudoColor ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   501
			current->flags |= SDL_HWPALETTE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   502
		} else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   503
	    		/* Initialize the colormap to the identity mapping */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   504
	    		SDL_GetGammaRamp(0, 0, 0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   505
	    		this->screen = current;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   506
	    		DGA_SetGammaRamp(this, this->gamma);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   507
			this->screen = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   508
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   509
	} else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   510
		DGA_colormap = XDGACreateColormap(DGA_Display, DGA_Screen,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   511
							mode, AllocNone);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   512
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   513
	XDGAInstallColormap(DGA_Display, DGA_Screen, DGA_colormap);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   514
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   515
	/* Update the hardware capabilities */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   516
	UpdateHWInfo(this, &mode->mode);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   517
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   518
	/* Set up the information for hardware surfaces */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   519
	surfaces_mem = (Uint8 *)current->pixels + screen_len;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   520
	surfaces_len = (mode->mode.imageHeight*current->pitch - screen_len);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   521
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   522
	/* Update for double-buffering, if we can */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   523
	XDGASetViewport(DGA_Display, DGA_Screen, 0, 0, XDGAFlipRetrace);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   524
	if ( flags & SDL_DOUBLEBUF ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   525
		if ( mode->mode.imageHeight >= (current->h*2) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   526
			current->flags |= SDL_DOUBLEBUF;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   527
			flip_page = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   528
			flip_yoffset[0] = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   529
			flip_yoffset[1] = current->h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   530
			flip_address[0] = memory_base;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   531
			flip_address[1] = memory_base+screen_len;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   532
			surfaces_mem += screen_len;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   533
			surfaces_len -= screen_len;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   534
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   535
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   536
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   537
	/* Allocate memory tracking for hardware surfaces */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   538
	DGA_FreeHWSurfaces(this);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   539
	if ( surfaces_len < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   540
		surfaces_len = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   541
	}
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   542
	DGA_InitHWSurfaces(this, current, surfaces_mem, surfaces_len);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   543
202
401f0134f4f9 Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents: 105
diff changeset
   544
	/* Expose the back buffer as surface memory */
401f0134f4f9 Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents: 105
diff changeset
   545
	if ( current->flags & SDL_DOUBLEBUF ) {
401f0134f4f9 Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents: 105
diff changeset
   546
		this->screen = current;
401f0134f4f9 Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents: 105
diff changeset
   547
		DGA_FlipHWSurface(this, current);
401f0134f4f9 Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents: 105
diff changeset
   548
		this->screen = NULL;
401f0134f4f9 Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents: 105
diff changeset
   549
	}
401f0134f4f9 Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents: 105
diff changeset
   550
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   551
	/* Set the update rectangle function */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   552
	this->UpdateRects = DGA_DirectUpdate;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   553
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   554
	/* Enable mouse and keyboard support */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   555
	{ long input_mask;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   556
	  input_mask = (KeyPressMask | KeyReleaseMask);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   557
	  input_mask |= (ButtonPressMask | ButtonReleaseMask);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   558
	  input_mask |= PointerMotionMask;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   559
	  XDGASelectInput(DGA_Display, DGA_Screen, input_mask);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   560
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   561
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   562
	/* We're done */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   563
	return(current);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   564
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   565
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   566
#ifdef DGA_DEBUG
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   567
static void DGA_DumpHWSurfaces(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   568
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   569
	vidmem_bucket *bucket;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   570
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   571
	printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   572
	printf("\n");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   573
	printf("         Base  Size\n");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   574
	for ( bucket=&surfaces; bucket; bucket=bucket->next ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   575
		printf("Bucket:  %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   576
		if ( bucket->prev ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   577
			if ( bucket->base != bucket->prev->base+bucket->prev->size ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   578
				printf("Warning, corrupt bucket list! (prev)\n");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   579
			}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   580
		} else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   581
			if ( bucket != &surfaces ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   582
				printf("Warning, corrupt bucket list! (!prev)\n");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   583
			}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   584
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   585
		if ( bucket->next ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   586
			if ( bucket->next->base != bucket->base+bucket->size ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   587
				printf("Warning, corrupt bucket list! (next)\n");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   588
			}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   589
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   590
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   591
	printf("\n");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   592
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   593
#endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   594
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   595
static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   596
{
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   597
	vidmem_bucket *bucket;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   598
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   599
	surfaces_memtotal = size;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   600
	surfaces_memleft = size;
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   601
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   602
	if ( surfaces_memleft > 0 ) {
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   603
		bucket = (vidmem_bucket *)malloc(sizeof(*bucket));
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   604
		if ( bucket == NULL ) {
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   605
			SDL_OutOfMemory();
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   606
			return(-1);
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   607
		}
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   608
		bucket->prev = &surfaces;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   609
		bucket->used = 0;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   610
		bucket->dirty = 0;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   611
		bucket->base = base;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   612
		bucket->size = size;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   613
		bucket->next = NULL;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   614
	} else {
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   615
		bucket = NULL;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   616
	}
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   617
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   618
	surfaces.prev = NULL;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   619
	surfaces.used = 1;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   620
	surfaces.dirty = 0;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   621
	surfaces.base = screen->pixels;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   622
	surfaces.size = (unsigned int)((long)base - (long)surfaces.base);
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   623
	surfaces.next = bucket;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   624
	screen->hwdata = (struct private_hwdata *)&surfaces;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   625
	return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   626
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   627
static void DGA_FreeHWSurfaces(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   628
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   629
	vidmem_bucket *bucket, *freeable;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   630
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   631
	bucket = surfaces.next;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   632
	while ( bucket ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   633
		freeable = bucket;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   634
		bucket = bucket->next;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   635
		free(freeable);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   636
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   637
	surfaces.next = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   638
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   639
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   640
static __inline__ void DGA_AddBusySurface(SDL_Surface *surface)
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   641
{
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   642
	((vidmem_bucket *)surface->hwdata)->dirty = 1;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   643
}
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   644
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   645
static __inline__ int DGA_IsSurfaceBusy(SDL_Surface *surface)
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   646
{
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   647
	return ((vidmem_bucket *)surface->hwdata)->dirty;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   648
}
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   649
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   650
static __inline__ void DGA_WaitBusySurfaces(_THIS)
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   651
{
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   652
	vidmem_bucket *bucket;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   653
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   654
	/* Wait for graphic operations to complete */
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   655
	XDGASync(DGA_Display, DGA_Screen);
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   656
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   657
	/* Clear all surface dirty bits */
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   658
	for ( bucket=&surfaces; bucket; bucket=bucket->next ) {
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   659
		bucket->dirty = 0;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   660
	}
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   661
}
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   662
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   663
static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   664
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   665
	vidmem_bucket *bucket;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   666
	int size;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   667
	int extra;
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   668
	int retval = 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   669
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   670
/* Temporarily, we only allow surfaces the same width as display.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   671
   Some blitters require the pitch between two hardware surfaces
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   672
   to be the same.  Others have interesting alignment restrictions.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   673
*/
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   674
if ( surface->pitch > SDL_VideoSurface->pitch ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   675
	SDL_SetError("Surface requested wider than screen");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   676
	return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   677
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   678
surface->pitch = SDL_VideoSurface->pitch;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   679
	size = surface->h * surface->pitch;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   680
#ifdef DGA_DEBUG
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   681
	fprintf(stderr, "Allocating bucket of %d bytes\n", size);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   682
#endif
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   683
	LOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   684
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   685
	/* Quick check for available mem */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   686
	if ( size > surfaces_memleft ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   687
		SDL_SetError("Not enough video memory");
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   688
		retval = -1;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   689
		goto done;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   690
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   691
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   692
	/* Search for an empty bucket big enough */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   693
	for ( bucket=&surfaces; bucket; bucket=bucket->next ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   694
		if ( ! bucket->used && (size <= bucket->size) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   695
			break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   696
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   697
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   698
	if ( bucket == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   699
		SDL_SetError("Video memory too fragmented");
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   700
		retval = -1;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   701
		goto done;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   702
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   703
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   704
	/* Create a new bucket for left-over memory */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   705
	extra = (bucket->size - size);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   706
	if ( extra ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   707
		vidmem_bucket *newbucket;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   708
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   709
#ifdef DGA_DEBUG
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   710
	fprintf(stderr, "Adding new free bucket of %d bytes\n", extra);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   711
#endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   712
		newbucket = (vidmem_bucket *)malloc(sizeof(*newbucket));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   713
		if ( newbucket == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   714
			SDL_OutOfMemory();
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   715
			retval = -1;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   716
			goto done;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   717
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   718
		newbucket->prev = bucket;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   719
		newbucket->used = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   720
		newbucket->base = bucket->base+size;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   721
		newbucket->size = extra;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   722
		newbucket->next = bucket->next;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   723
		if ( bucket->next ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   724
			bucket->next->prev = newbucket;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   725
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   726
		bucket->next = newbucket;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   727
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   728
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   729
	/* Set the current bucket values and return it! */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   730
	bucket->used = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   731
	bucket->size = size;
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   732
	bucket->dirty = 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   733
#ifdef DGA_DEBUG
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   734
	fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   735
#endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   736
	surfaces_memleft -= size;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   737
	surface->flags |= SDL_HWSURFACE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   738
	surface->pixels = bucket->base;
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   739
	surface->hwdata = (struct private_hwdata *)bucket;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   740
done:
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   741
	UNLOCK_DISPLAY();
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   742
	return(retval);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   743
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   744
static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   745
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   746
	vidmem_bucket *bucket, *freeable;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   747
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   748
	/* Look for the bucket in the current list */
102
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   749
	for ( bucket=&surfaces; bucket; bucket=bucket->next ) {
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   750
		if ( bucket == (vidmem_bucket *)surface->hwdata ) {
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   751
			break;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   752
		}
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   753
	}
102
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   754
	if ( bucket && bucket->used ) {
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   755
		/* Add the memory back to the total */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   756
#ifdef DGA_DEBUG
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   757
	printf("Freeing bucket of %d bytes\n", bucket->size);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   758
#endif
102
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   759
		surfaces_memleft += bucket->size;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   760
102
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   761
		/* Can we merge the space with surrounding buckets? */
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   762
		bucket->used = 0;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   763
		if ( bucket->next && ! bucket->next->used ) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   764
#ifdef DGA_DEBUG
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   765
	printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   766
#endif
102
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   767
			freeable = bucket->next;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   768
			bucket->size += bucket->next->size;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   769
			bucket->next = bucket->next->next;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   770
			if ( bucket->next ) {
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   771
				bucket->next->prev = bucket;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   772
			}
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   773
			free(freeable);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   774
		}
102
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   775
		if ( bucket->prev && ! bucket->prev->used ) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   776
#ifdef DGA_DEBUG
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   777
	printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   778
#endif
102
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   779
			freeable = bucket;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   780
			bucket->prev->size += bucket->size;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   781
			bucket->prev->next = bucket->next;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   782
			if ( bucket->next ) {
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   783
				bucket->next->prev = bucket->prev;
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   784
			}
9162d62280b5 Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents: 101
diff changeset
   785
			free(freeable);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   786
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   787
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   788
	surface->pixels = NULL;
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   789
	surface->hwdata = NULL;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   790
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   791
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   792
static __inline__ void DGA_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   793
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   794
	*x = (long)((Uint8 *)dst->pixels - memory_base)%memory_pitch;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   795
	*y = (long)((Uint8 *)dst->pixels - memory_base)/memory_pitch;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   796
	if ( dst == this->screen ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   797
		*x += this->offset_x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   798
		*y += this->offset_y;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   799
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   800
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   801
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   802
static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   803
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   804
	int x, y;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   805
	unsigned int w, h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   806
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   807
	/* Don't fill the visible part of the screen, wait until flipped */
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   808
	LOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   809
	if ( was_flipped && (dst == this->screen) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   810
		while ( XDGAGetViewportStatus(DGA_Display, DGA_Screen) )
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   811
			/* Keep waiting for the hardware ... */ ;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   812
		was_flipped = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   813
	}
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   814
	DGA_dst_to_xy(this, dst, &x, &y);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   815
	x += rect->x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   816
	y += rect->y;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   817
	w = rect->w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   818
	h = rect->h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   819
#if 0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   820
  printf("Hardware accelerated rectangle fill: %dx%d at %d,%d\n", w, h, x, y);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   821
#endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   822
	XDGAFillRectangle(DGA_Display, DGA_Screen, x, y, w, h, color);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   823
	XFlush(DGA_Display);
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   824
	DGA_AddBusySurface(dst);
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   825
	UNLOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   826
	return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   827
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   828
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   829
static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   830
                       SDL_Surface *dst, SDL_Rect *dstrect)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   831
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   832
	SDL_VideoDevice *this;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   833
	int srcx, srcy;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   834
	int dstx, dsty;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   835
	unsigned int w, h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   836
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   837
	this = current_video;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   838
	/* Don't blit to the visible part of the screen, wait until flipped */
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   839
	LOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   840
	if ( was_flipped && (dst == this->screen) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   841
		while ( XDGAGetViewportStatus(DGA_Display, DGA_Screen) )
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   842
			/* Keep waiting for the hardware ... */ ;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   843
		was_flipped = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   844
	}
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   845
	DGA_dst_to_xy(this, src, &srcx, &srcy);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   846
	srcx += srcrect->x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   847
	srcy += srcrect->y;
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   848
	DGA_dst_to_xy(this, dst, &dstx, &dsty);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   849
	dstx += dstrect->x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   850
	dsty += dstrect->y;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   851
	w = srcrect->w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   852
	h = srcrect->h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   853
#if 0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   854
  printf("Blitting %dx%d from %d,%d to %d,%d\n", w, h, srcx, srcy, dstx, dsty);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   855
#endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   856
	if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   857
		XDGACopyTransparentArea(DGA_Display, DGA_Screen,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   858
			srcx, srcy, w, h, dstx, dsty, src->format->colorkey);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   859
	} else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   860
		XDGACopyArea(DGA_Display, DGA_Screen,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   861
			srcx, srcy, w, h, dstx, dsty);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   862
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   863
	XFlush(DGA_Display);
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   864
	DGA_AddBusySurface(src);
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   865
	DGA_AddBusySurface(dst);
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   866
	UNLOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   867
	return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   868
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   869
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   870
static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   871
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   872
	int accelerated;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   873
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   874
	/* Set initial acceleration on */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   875
	src->flags |= SDL_HWACCEL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   876
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   877
	/* Set the surface attributes */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   878
	if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   879
		if ( ! this->info.blit_hw_A ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   880
			src->flags &= ~SDL_HWACCEL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   881
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   882
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   883
	if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   884
		if ( ! this->info.blit_hw_CC ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   885
			src->flags &= ~SDL_HWACCEL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   886
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   887
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   888
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   889
	/* Check to see if final surface blit is accelerated */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   890
	accelerated = !!(src->flags & SDL_HWACCEL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   891
	if ( accelerated ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   892
		src->map->hw_blit = HWAccelBlit;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   893
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   894
	return(accelerated);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   895
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   896
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   897
static __inline__ void DGA_WaitFlip(_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   898
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   899
	if ( was_flipped ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   900
		while ( XDGAGetViewportStatus(DGA_Display, DGA_Screen) )
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   901
			/* Keep waiting for the hardware ... */ ;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   902
		was_flipped = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   903
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   904
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   905
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   906
static int DGA_LockHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   907
{
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   908
	if ( surface == this->screen ) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   909
		SDL_mutexP(hw_lock);
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   910
		LOCK_DISPLAY();
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   911
		if ( DGA_IsSurfaceBusy(surface) ) {
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   912
			DGA_WaitBusySurfaces(this);
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   913
		}
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   914
		DGA_WaitFlip(this);
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   915
		UNLOCK_DISPLAY();
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   916
	} else {
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   917
		if ( DGA_IsSurfaceBusy(surface) ) {
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   918
			LOCK_DISPLAY();
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   919
			DGA_WaitBusySurfaces(this);
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   920
			UNLOCK_DISPLAY();
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   921
		}
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   922
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   923
	return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   924
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   925
static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   926
{
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   927
	if ( surface == this->screen ) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   928
		SDL_mutexV(hw_lock);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   929
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   930
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   931
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   932
static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   933
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   934
	/* Wait for vertical retrace and then flip display */
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   935
	LOCK_DISPLAY();
105
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   936
	if ( DGA_IsSurfaceBusy(this->screen) ) {
2136ea8953f9 Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents: 102
diff changeset
   937
		DGA_WaitBusySurfaces(this);
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   938
	}
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   939
	DGA_WaitFlip(this);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   940
	XDGASetViewport(DGA_Display, DGA_Screen,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   941
	                0, flip_yoffset[flip_page], XDGAFlipRetrace);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   942
	XFlush(DGA_Display);
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   943
	UNLOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   944
	was_flipped = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   945
	flip_page = !flip_page;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   946
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   947
	surface->pixels = flip_address[flip_page];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   948
	return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   949
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   950
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   951
static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   952
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   953
	/* The application is already updating the visible video memory */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   954
	return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   955
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   956
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   957
static int DGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   958
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   959
        int i;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   960
	XColor  *xcmap;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   961
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   962
	/* This happens on initialization */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   963
	if ( ! DGA_colormap ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   964
		return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   965
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   966
	xcmap = (XColor *)alloca(ncolors*sizeof(*xcmap));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   967
	for ( i=0; i<ncolors; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   968
		xcmap[i].pixel = firstcolor + i;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   969
		xcmap[i].red   = (colors[i].r<<8)|colors[i].r;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   970
		xcmap[i].green = (colors[i].g<<8)|colors[i].g;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   971
		xcmap[i].blue  = (colors[i].b<<8)|colors[i].b;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   972
		xcmap[i].flags = (DoRed|DoGreen|DoBlue);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   973
	}
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   974
	LOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   975
	XStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   976
	XSync(DGA_Display, False);
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
   977
	UNLOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   978
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   979
	/* That was easy. :) */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   980
	return(1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   981
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   982
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   983
int DGA_SetGammaRamp(_THIS, Uint16 *ramp)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   984
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   985
	int i, ncolors;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   986
	XColor xcmap[256];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   987
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   988
	/* See if actually setting the gamma is supported */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   989
	if ( DGA_visualClass != DirectColor ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   990
	    SDL_SetError("Gamma correction not supported on this visual");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   991
	    return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   992
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   993
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   994
	/* Calculate the appropriate palette for the given gamma ramp */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   995
	if ( this->screen->format->BitsPerPixel <= 16 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   996
		ncolors = 64; /* Is this right? */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   997
	} else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   998
		ncolors = 256;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   999
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1000
	for ( i=0; i<ncolors; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1001
		Uint8 c = (256 * i / ncolors);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1002
		xcmap[i].pixel = SDL_MapRGB(this->screen->format, c, c, c);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1003
		xcmap[i].red   = ramp[0*256+c];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1004
		xcmap[i].green = ramp[1*256+c];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1005
		xcmap[i].blue  = ramp[2*256+c];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1006
		xcmap[i].flags = (DoRed|DoGreen|DoBlue);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1007
	}
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
  1008
	LOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1009
	XStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1010
	XSync(DGA_Display, False);
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
  1011
	UNLOCK_DISPLAY();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1012
	return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1013
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1014
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1015
void DGA_VideoQuit(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1016
{
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1017
	int i, j;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1018
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1019
	if ( DGA_Display ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1020
		/* Free colormap, if necessary */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1021
		if ( DGA_colormap ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1022
			XFreeColormap(DGA_Display, DGA_colormap);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1023
			DGA_colormap = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1024
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1025
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1026
		/* Unmap memory and reset video mode */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1027
		XDGACloseFramebuffer(DGA_Display, DGA_Screen);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1028
		if ( this->screen ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1029
			/* Tell SDL not to free the pixels */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1030
			this->screen->pixels = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1031
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1032
		XDGASetMode(DGA_Display, DGA_Screen, 0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1033
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1034
		/* Clear the lock mutex */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1035
		if ( hw_lock != NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1036
			SDL_DestroyMutex(hw_lock);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1037
			hw_lock = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1038
		}
101
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
  1039
#ifdef LOCK_DGA_DISPLAY
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
  1040
		if ( event_lock != NULL ) {
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
  1041
			SDL_DestroyMutex(event_lock);
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
  1042
			event_lock = NULL;
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
  1043
		}
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
  1044
#endif /* LOCK_DGA_DISPLAY */
825b2fa28e2e DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents: 91
diff changeset
  1045
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1046
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1047
		/* Clean up defined video modes */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1048
		for ( i=0; i<NUM_MODELISTS; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1049
			if ( SDL_modelist[i] != NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1050
				for ( j=0; SDL_modelist[i][j]; ++j ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1051
					free(SDL_modelist[i][j]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1052
				}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1053
				free(SDL_modelist[i]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1054
				SDL_modelist[i] = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1055
			}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1056
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1057
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1058
		/* Clean up the memory bucket list */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1059
		DGA_FreeHWSurfaces(this);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1060
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1061
		/* Close up the display */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1062
		XCloseDisplay(DGA_Display);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1063
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
  1064
}