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wine/dlls/x11drv/settings.c
Vitaliy Margolen 20a886164f x11drv: Convert 24-bit into 32-bit color before looking for an 
available screen resolution. We do this during enumeration, so there
would be no 24-bit modes available.
2006-03-01 12:34:23 +01:00

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/*
* Wine X11drv display settings functions
*
* Copyright 2003 Alexander James Pasadyn
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <string.h>
#include <stdio.h>
#include "x11drv.h"
#include "x11ddraw.h"
#include "windef.h"
#include "wingdi.h"
#include "ddrawi.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(x11settings);
/*
* The DDHALMODEINFO type is used to hold all the mode information.
* This is done because the array of DDHALMODEINFO structures must be
* created for use by DirectDraw anyway.
*/
static LPDDHALMODEINFO dd_modes = NULL;
static unsigned int dd_mode_count = 0;
static unsigned int dd_max_modes = 0;
static int dd_mode_default = 0;
static const unsigned int depths[] = {8, 16, 32};
/* pointers to functions that actually do the hard stuff */
static int (*pGetCurrentMode)(void);
static void (*pSetCurrentMode)(int mode);
static const char *handler_name;
/*
* Set the handlers for resolution changing functions
* and initialize the master list of modes
*/
LPDDHALMODEINFO X11DRV_Settings_SetHandlers(const char *name,
int (*pNewGCM)(void),
void (*pNewSCM)(int),
unsigned int nmodes,
int reserve_depths)
{
handler_name = name;
pGetCurrentMode = pNewGCM;
pSetCurrentMode = pNewSCM;
TRACE("Resolution settings now handled by: %s\n", name);
if (reserve_depths)
/* leave room for other depths */
dd_max_modes = (3+1)*(nmodes);
else
dd_max_modes = nmodes;
if (dd_modes)
{
TRACE("Destroying old display modes array\n");
HeapFree(GetProcessHeap(), 0, dd_modes);
}
dd_modes = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DDHALMODEINFO) * dd_max_modes);
dd_mode_count = 0;
TRACE("Initialized new display modes array\n");
return dd_modes;
}
/* Add one mode to the master list */
void X11DRV_Settings_AddOneMode(unsigned int width, unsigned int height, unsigned int bpp, unsigned int freq)
{
LPDDHALMODEINFO info = &(dd_modes[dd_mode_count]);
DWORD dwBpp = screen_depth;
if (dd_mode_count >= dd_max_modes)
{
ERR("Maximum modes (%d) exceeded\n", dd_max_modes);
return;
}
if (dwBpp == 24) dwBpp = 32;
if (bpp == 0) bpp = dwBpp;
info->dwWidth = width;
info->dwHeight = height;
info->wRefreshRate = freq;
info->lPitch = 0;
info->dwBPP = bpp;
info->wFlags = 0;
info->dwRBitMask = 0;
info->dwGBitMask = 0;
info->dwBBitMask = 0;
info->dwAlphaBitMask = 0;
TRACE("initialized mode %d: %dx%dx%d @%d Hz (%s)\n",
dd_mode_count, width, height, bpp, freq, handler_name);
dd_mode_count++;
}
/* copy all the current modes using the other color depths */
void X11DRV_Settings_AddDepthModes(void)
{
int i, j;
int existing_modes = dd_mode_count;
DWORD dwBpp = screen_depth;
if (dwBpp == 24) dwBpp = 32;
for (j=0; j<3; j++)
{
if (depths[j] != dwBpp)
{
for (i=0; i < existing_modes; i++)
{
X11DRV_Settings_AddOneMode(dd_modes[i].dwWidth, dd_modes[i].dwHeight,
depths[j], dd_modes[i].wRefreshRate);
}
}
}
}
/* set the default mode */
void X11DRV_Settings_SetDefaultMode(int mode)
{
dd_mode_default = mode;
}
/* return the number of modes that are initialized */
unsigned int X11DRV_Settings_GetModeCount(void)
{
return dd_mode_count;
}
/***********************************************************************
* Default handlers if resolution switching is not enabled
*
*/
static int X11DRV_nores_GetCurrentMode(void)
{
return 0;
}
static void X11DRV_nores_SetCurrentMode(int mode)
{
TRACE("Ignoring mode change request\n");
}
/* default handler only gets the current X desktop resolution */
void X11DRV_Settings_Init(void)
{
X11DRV_Settings_SetHandlers("NoRes",
X11DRV_nores_GetCurrentMode,
X11DRV_nores_SetCurrentMode,
1, 0);
X11DRV_Settings_AddOneMode(screen_width, screen_height, 0, 0);
}
/***********************************************************************
* EnumDisplaySettingsEx (X11DRV.@)
*
*/
BOOL X11DRV_EnumDisplaySettingsEx( LPCWSTR name, DWORD n, LPDEVMODEW devmode, DWORD flags)
{
DWORD dwBpp = screen_depth;
if (dwBpp == 24) dwBpp = 32;
devmode->dmDisplayFlags = 0;
devmode->dmDisplayFrequency = 0;
devmode->dmSize = sizeof(DEVMODEW);
if (n == ENUM_CURRENT_SETTINGS)
{
TRACE("mode %ld (current) -- getting current mode (%s)\n", n, handler_name);
n = pGetCurrentMode();
}
if (n == ENUM_REGISTRY_SETTINGS)
{
TRACE("mode %ld (registry) -- getting default mode (%s)\n", n, handler_name);
n = dd_mode_default;
}
if (n < dd_mode_count)
{
devmode->dmPelsWidth = dd_modes[n].dwWidth;
devmode->dmPelsHeight = dd_modes[n].dwHeight;
devmode->dmBitsPerPel = dd_modes[n].dwBPP;
devmode->dmDisplayFrequency = dd_modes[n].wRefreshRate;
devmode->dmFields = (DM_PELSWIDTH|DM_PELSHEIGHT|DM_BITSPERPEL);
if (devmode->dmDisplayFrequency)
{
devmode->dmFields |= DM_DISPLAYFREQUENCY;
TRACE("mode %ld -- %ldx%ldx%ldbpp @%ld Hz (%s)\n", n,
devmode->dmPelsWidth, devmode->dmPelsHeight, devmode->dmBitsPerPel,
devmode->dmDisplayFrequency, handler_name);
}
else
{
TRACE("mode %ld -- %ldx%ldx%ldbpp (%s)\n", n,
devmode->dmPelsWidth, devmode->dmPelsHeight, devmode->dmBitsPerPel,
handler_name);
}
return TRUE;
}
TRACE("mode %ld -- not present (%s)\n", n, handler_name);
return FALSE;
}
#define _X_FIELD(prefix, bits) if ((fields) & prefix##_##bits) {p+=sprintf(p, "%s%s", first ? "" : ",", #bits); first=FALSE;}
static const char * _CDS_flags(DWORD fields)
{
BOOL first = TRUE;
char buf[128];
char *p = buf;
_X_FIELD(CDS,UPDATEREGISTRY);_X_FIELD(CDS,TEST);_X_FIELD(CDS,FULLSCREEN);
_X_FIELD(CDS,GLOBAL);_X_FIELD(CDS,SET_PRIMARY);_X_FIELD(CDS,RESET);
_X_FIELD(CDS,SETRECT);_X_FIELD(CDS,NORESET);
*p = 0;
return wine_dbg_sprintf("%s", buf);
}
static const char * _DM_fields(DWORD fields)
{
BOOL first = TRUE;
char buf[128];
char *p = buf;
_X_FIELD(DM,BITSPERPEL);_X_FIELD(DM,PELSWIDTH);_X_FIELD(DM,PELSHEIGHT);
_X_FIELD(DM,DISPLAYFLAGS);_X_FIELD(DM,DISPLAYFREQUENCY);_X_FIELD(DM,POSITION);
*p = 0;
return wine_dbg_sprintf("%s", buf);
}
#undef _X_FIELD
/***********************************************************************
* ChangeDisplaySettingsEx (X11DRV.@)
*
*/
LONG X11DRV_ChangeDisplaySettingsEx( LPCWSTR devname, LPDEVMODEW devmode,
HWND hwnd, DWORD flags, LPVOID lpvoid )
{
DWORD i, dwBpp;
DEVMODEW dm;
TRACE("(%s,%p,%p,0x%08lx,%p)\n",debugstr_w(devname),devmode,hwnd,flags,lpvoid);
TRACE("flags=%s\n",_CDS_flags(flags));
if (devmode)
{
TRACE("DM_fields=%s\n",_DM_fields(devmode->dmFields));
TRACE("width=%ld height=%ld bpp=%ld freq=%ld (%s)\n",
devmode->dmPelsWidth,devmode->dmPelsHeight,
devmode->dmBitsPerPel,devmode->dmDisplayFrequency, handler_name);
}
else
{
TRACE("Return to original display mode (%s)\n", handler_name);
if (!X11DRV_EnumDisplaySettingsEx(devname, dd_mode_default, &dm, 0))
{
ERR("Default mode not found!\n");
return DISP_CHANGE_BADMODE;
}
devmode = &dm;
}
dwBpp = (devmode->dmBitsPerPel == 24) ? 32 : devmode->dmBitsPerPel;
for (i = 0; i < dd_mode_count; i++)
{
if (devmode->dmFields & DM_BITSPERPEL)
{
if (dwBpp != dd_modes[i].dwBPP)
continue;
}
if (devmode->dmFields & DM_PELSWIDTH)
{
if (devmode->dmPelsWidth != dd_modes[i].dwWidth)
continue;
}
if (devmode->dmFields & DM_PELSHEIGHT)
{
if (devmode->dmPelsHeight != dd_modes[i].dwHeight)
continue;
}
if ((devmode->dmFields & DM_DISPLAYFREQUENCY) && (dd_modes[i].wRefreshRate != 0))
{
if (devmode->dmDisplayFrequency != dd_modes[i].wRefreshRate)
continue;
}
/* we have a valid mode */
TRACE("Requested display settings match mode %ld (%s)\n", i, handler_name);
if (!(flags & CDS_TEST))
pSetCurrentMode(i);
return DISP_CHANGE_SUCCESSFUL;
}
/* no valid modes found */
ERR("No matching mode found! (%s)\n", handler_name);
return DISP_CHANGE_BADMODE;
}
/***********************************************************************
* DirectDraw HAL interface
*
*/
static DWORD PASCAL X11DRV_Settings_SetMode(LPDDHAL_SETMODEDATA data)
{
TRACE("Mode %ld requested by DDHAL (%s)\n", data->dwModeIndex, handler_name);
pSetCurrentMode(data->dwModeIndex);
X11DRV_DDHAL_SwitchMode(data->dwModeIndex, NULL, NULL);
data->ddRVal = DD_OK;
return DDHAL_DRIVER_HANDLED;
}
int X11DRV_Settings_CreateDriver(LPDDHALINFO info)
{
if (!dd_mode_count) return 0; /* no settings defined */
TRACE("Setting up display settings for DDRAW (%s)\n", handler_name);
info->dwNumModes = dd_mode_count;
info->lpModeInfo = dd_modes;
X11DRV_DDHAL_SwitchMode(pGetCurrentMode(), NULL, NULL);
info->lpDDCallbacks->SetMode = X11DRV_Settings_SetMode;
return TRUE;
}
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