Sweden-Number/dlls/ddraw/dga.c

273 lines
7.6 KiB
C

/* DirectDraw using DGA
*
* Copyright 1997-2000 Marcus Meissner
* Copyright 1998-2000 Lionel Ulmer (most of Direct3D stuff)
*/
/* XF86DGA:
* When DirectVideo mode is enabled you can no longer use 'normal' X
* applications nor can you switch to a virtual console. Also, enabling
* only works, if you have switched to the screen where the application
* is running.
* Some ways to debug this stuff are:
* - A terminal connected to the serial port. Can be bought used for cheap.
* (This is the method I am using.)
* - Another machine connected over some kind of network.
*/
#include "config.h"
#include "winerror.h"
#include <unistd.h>
#include <assert.h>
#ifdef HAVE_SYS_SIGNAL_H
# include <sys/signal.h>
#endif
#include <fcntl.h>
#include <string.h>
#include <stdio.h>
#include "gdi.h"
#include "heap.h"
#include "dc.h"
#include "win.h"
#include "wine/exception.h"
#include "ddraw.h"
#include "d3d.h"
#include "debugtools.h"
#include "spy.h"
#include "message.h"
#include "options.h"
#include "monitor.h"
#include "dga_private.h"
#define RESTORE__SIGNALS
DEFAULT_DEBUG_CHANNEL(ddraw);
#ifdef HAVE_LIBXXF86VM
XF86VidModeModeInfo *orig_mode = NULL;
#endif
static inline BOOL get_option( const char *name, BOOL def ) {
return PROFILE_GetWineIniBool( "x11drv", name, def );
}
static BYTE
DDRAW_DGA_Available(void)
{
int fd, evbase, evret, majver, minver;
static BYTE return_value = 0xFF;
/* This prevents from probing X times for DGA */
if (return_value != 0xFF)
return return_value;
if (!get_option( "UseDGA", 1 )) {
TRACE("UseDGA disabled.\n");
return_value = 0;
return 0;
}
/* First, query the extenstion and its version */
if (!TSXF86DGAQueryExtension(display,&evbase,&evret)) {
TRACE("DGA extension not detected.\n");
return_value = 0;
return 0;
}
if (!TSXF86DGAQueryVersion(display,&majver,&minver)) {
TRACE("DGA version not detected.\n");
return_value = 0;
return 0;
}
#ifdef HAVE_LIBXXF86DGA2
if (majver >= 2) {
/* We have DGA 2.0 available ! */
if (TSXDGAOpenFramebuffer(display, DefaultScreen(display))) {
TSXDGACloseFramebuffer(display, DefaultScreen(display));
return_value = 2;
} else
return_value = 0;
return return_value;
}
#endif /* defined(HAVE_LIBXXF86DGA2) */
/* You don't have to be root to use DGA extensions. Simply having access
* to /dev/mem will do the trick
* This can be achieved by adding the user to the "kmem" group on
* Debian 2.x systems, don't know about
* others. --stephenc
*/
if ((fd = open("/dev/mem", O_RDWR)) != -1)
close(fd);
if (fd != -1)
return_value = 1;
else {
TRACE("You have no access to /dev/mem\n");
return_value = 0;
}
return return_value;
}
HRESULT
DGA_Create( LPDIRECTDRAW *lplpDD ) {
IDirectDrawImpl* ddraw;
dga_dd_private* dgpriv;
int memsize,banksize,major,minor,flags;
char *addr;
int depth;
int dga_version;
int width, height;
/* Get DGA availability / version */
dga_version = DDRAW_DGA_Available();
if (dga_version == 0)
return DDERR_GENERIC;
/* If we were just testing ... return OK */
if (lplpDD == NULL)
return DD_OK;
ddraw = (IDirectDrawImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawImpl));
*lplpDD = (LPDIRECTDRAW)ddraw;
ddraw->ref = 1;
ICOM_VTBL(ddraw) = &dga_ddvt;
ddraw->private = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(dga_dd_private));
dgpriv = (dga_dd_private*)ddraw->private;
#ifdef HAVE_LIBXXF86DGA2
if (dga_version == 1) {
dgpriv->version = 1;
#endif /* defined(HAVE_LIBXXF86DGA2) */
TSXF86DGAQueryVersion(display,&major,&minor);
TRACE("XF86DGA is version %d.%d\n",major,minor);
TSXF86DGAQueryDirectVideo(display,DefaultScreen(display),&flags);
if (!(flags & XF86DGADirectPresent))
MESSAGE("direct video is NOT PRESENT.\n");
TSXF86DGAGetVideo(display,DefaultScreen(display),&addr,&width,&banksize,&memsize);
dgpriv->fb_width = width;
TSXF86DGAGetViewPortSize(display,DefaultScreen(display),&width,&height);
TSXF86DGASetViewPort(display,DefaultScreen(display),0,0);
dgpriv->fb_height = height;
TRACE("video framebuffer: begin %p, width %d,banksize %d,memsize %d\n",
addr,width,banksize,memsize
);
TRACE("viewport height: %d\n",height);
/* Get the screen dimensions as seen by Wine.
* In that case, it may be better to ignore the -desktop mode and
* return the real screen size => print a warning
*/
ddraw->d.height = MONITOR_GetHeight(&MONITOR_PrimaryMonitor);
ddraw->d.width = MONITOR_GetWidth(&MONITOR_PrimaryMonitor);
if ((ddraw->d.height != height) || (ddraw->d.width != width))
WARN("You seem to be running in -desktop mode. This may prove dangerous in DGA mode...\n");
dgpriv->fb_addr = addr;
dgpriv->fb_memsize = memsize;
dgpriv->vpmask = 0;
/* just assume the default depth is the DGA depth too */
depth = DefaultDepthOfScreen(X11DRV_GetXScreen());
_common_depth_to_pixelformat(depth, &(ddraw->d.directdraw_pixelformat), &(ddraw->d.screen_pixelformat), NULL);
#ifdef RESTORE_SIGNALS
SIGNAL_Init();
#endif
#ifdef HAVE_LIBXXF86DGA2
} else {
XDGAMode *modes;
int i, num_modes;
int mode_to_use = 0;
dgpriv->version = 2;
TSXDGAQueryVersion(display,&major,&minor);
TRACE("XDGA is version %d.%d\n",major,minor);
TRACE("Opening the frame buffer.\n");
if (!TSXDGAOpenFramebuffer(display, DefaultScreen(display))) {
ERR("Error opening the frame buffer !!!\n");
return DDERR_GENERIC;
}
/* List all available modes */
modes = TSXDGAQueryModes(display, DefaultScreen(display), &num_modes);
dgpriv->modes = modes;
dgpriv->num_modes = num_modes;
TRACE("Available modes :\n");
for (i = 0; i < num_modes; i++) {
if (TRACE_ON(ddraw)) {
DPRINTF(" %d) - %s (FB: %dx%d / VP: %dx%d) - depth %d -",
modes[i].num,
modes[i].name, modes[i].imageWidth, modes[i].imageHeight,
modes[i].viewportWidth, modes[i].viewportHeight,
modes[i].depth
);
#define XX(x) if (modes[i].flags & x) DPRINTF(" "#x" ");
XX(XDGAConcurrentAccess);
XX(XDGASolidFillRect);
XX(XDGABlitRect);
XX(XDGABlitTransRect);
XX(XDGAPixmap);
#undef XX
DPRINTF("\n");
}
if ((MONITOR_GetHeight(&MONITOR_PrimaryMonitor) == modes[i].viewportHeight) &&
(MONITOR_GetWidth(&MONITOR_PrimaryMonitor) == modes[i].viewportWidth) &&
(MONITOR_GetDepth(&MONITOR_PrimaryMonitor) == modes[i].depth)
) {
mode_to_use = modes[i].num;
}
}
if (mode_to_use == 0) {
ERR("Could not find mode !\n");
mode_to_use = 1;
} else {
DPRINTF("Using mode number %d\n", mode_to_use);
}
/* Initialize the frame buffer */
_DGA_Initialize_FrameBuffer(*lplpDD, mode_to_use);
/* Set the input handling for relative mouse movements */
X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_RELATIVE);
}
#endif /* defined(HAVE_LIBXXF86DGA2) */
return DD_OK;
}
/* Where do these GUIDs come from? mkuuid.
* They exist solely to distinguish between the targets Wine support,
* and should be different than any other GUIDs in existence.
*/
static GUID DGA_DirectDraw_GUID = { /* e2dcb020-dc60-11d1-8407-9714f5d50802 */
0xe2dcb020,
0xdc60,
0x11d1,
{0x84, 0x07, 0x97, 0x14, 0xf5, 0xd5, 0x08, 0x02}
};
ddraw_driver dga_driver = {
&DGA_DirectDraw_GUID,
"display",
"WINE XF86DGA DirectDraw Driver",
100,
DGA_Create
};
#ifdef __GNUC__
static void DGA_register(void) __attribute__((constructor));
#else /* defined(__GNUC__) */
static void __asm__dummy_dll_init(void) {
asm("\t.section .init ,\"ax\"\n"
"\tcall DGA_register\n"
"\t.previous\n");
}
#endif /* defined(__GNUC__) */
static void DGA_register(void) { ddraw_register_driver(&dga_driver); }