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| -rw-r--r-- | man/XF86VM.man | 343 |
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diff --git a/man/XF86VM.man b/man/XF86VM.man new file mode 100644 index 0000000..e13dff0 --- /dev/null +++ b/man/XF86VM.man @@ -0,0 +1,343 @@ +.\" $Xorg: XF86VM.man,v 1.3 2000/08/17 19:50:53 cpqbld Exp $ +.\" +.\" +.\" +.\" +.\" Copyright (c) 1996 Joe Moss, The XFree86 Project +.\" $XFree86: xc/programs/Xserver/hw/xfree86/doc/man/XF86VM.man,v 3.6.2.3 1998/02/26 13:59:05 dawes Exp $ +.\" +.de ZN +.ie t \fB\^\\$1\^\fR\\$2 +.el \fI\^\\$1\^\fP\\$2 +.. +.TH XF86VIDMODE 3X11 "3.3.2" "XFree86" "X FUNCTIONS" +.SH NAME +XF86VidModeQueryExtension, XF86VidModeQueryVersion, XF86VidModeGetModeLine, XF86VidModeGetAllModeLines, XF86VidModeDeleteModeLine, XF86VidModeModModeLine, XF86VidModeValidateModeLine, XF86VidModeSwitchMode, XF86VidModeSwitchToMode, XF86VidModeLockModeSwitch, XF86VidModeGetMonitor, XF86VidModeGetViewPort, XF86VidModeSetViewPort \- XFree86-VidMode extension interface functions +.SH SYNTAX +.nf +.LP +#include <X11/extensions/xf86vmode.h> +.LP +Bool XF86VidModeQueryExtension( + Display *\fIdisplay\fP\^, + int *\fIevent_base_return\fP\^, + int *\fIerror_base_return\fP\^); +.LP +Bool XF86VidModeQueryVersion( + Display *\fIdisplay\fP\^, + int *\fImajor_version_return\fP\^, + int *\fIminor_version_return\fP\^); +.LP +Bool XF86VidModeGetModeLine( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + int *\fIdotclock_return\fP\^, + XF86VidModeModeLine *\fImodeline\fP\^); +.LP +Bool XF86VidModeGetAllModeLines( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + int *\fImodecount_return\fP\^, + XF86VidModeModeInfo **\fImodesinfo\fP\^); +.ig +.LP +Bool XF86VidModeAddModeLine( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + XF86VidModeModeInfo *\fImodeline\fP\, + XF86VidModeModeInfo *\fIaftermode\fP\^); +.. +.LP +Bool XF86VidModeDeleteModeLine( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + XF86VidModeModeInfo *\fImodeline\fP\^); +.LP +Bool XF86VidModeModModeLine( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + XF86VidModeModeLine *\fImodeline\fP\^); +.LP +Status XF86VidModeValidateModeLine( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + XF86VidModeModeLine *\fImodeline\fP\^); +.LP +Bool XF86VidModeSwitchMode( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + int \fIzoom\fP\^); +.LP +Bool XF86VidModeSwitchToMode( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + XF86VidModeModeInfo *\fImodeline\fP\^); +.LP +Bool XF86VidModeLockModeSwitch( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + int \fIlock\fP\^); +.LP +Bool XF86VidModeGetMonitor( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + XF86VidModeMonitor *\fImonitor\fP\^); +.LP +Bool XF86VidModeGetViewPort( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + int *\fIx_return\fP\^, + int *\fIy_return\fP\^); +.LP +Bool XF86VidModeSetViewPort( + Display *\fIdisplay\fP\^, + int \fIscreen\fP\^, + int \fIx\fP\^, + int \fIy\fP\^); +.fi +.SH ARGUMENTS +.IP \fIdisplay\fP 2i +Specifies the connection to the X server. +.IP \fIscreen\fP 2i +Specifies which screen number the setting apply to. +.IP \fIevent_base_return\fP 2i +Returns the base event number for the extension. +.IP \fIerror_base_return\fP 2i +Returns the base error number for the extension. +.IP \fImajor_version_return\fP 2i +Returns the major version number of the extension. +.IP \fIminor_version_return\fP 2i +Returns the minor version number of the extension. +.IP \fIdotclock_return\fP 2i +Returns the clock for the mode line. +.IP \fImodecount_return\fP 2i +Returns the number of video modes available in the server. +.IP \fIzoom\fP 2i +If greater than zero, indicates that the server should switch to +the next mode, otherwise switch to the previous mode. +.IP \fIlock\fP 2i +Indicates that mode switching should be locked, if non-zero. +.IP \fImodeline\fP 2i +Specifies or returns the timing values for a video mode. +.ig +.IP \fIaftermode\fP 2i +Specifies the timing values for the video mode after which the +new mode will added. +.. +.IP \fImodesinfo\fP 2i +Returns the timing values and dotclocks for all of the available +video modes. +.IP \fImonitor\fP 2i +Returns information about the monitor. +.IP \fIx\fP 2i +Specifies the desired X location for the viewport. +.IP \fIx_return\fP 2i +Returns the current X location of the viewport. +.IP \fIy\fP 2i +Specifies the desired Y location for the viewport. +.IP \fIy_return\fP 2i +Returns the current Y location of the viewport. +.SH STRUCTURES +.nf +.ta 2.25i 3.5i +\fIVideo Mode Settings:\fP +typedef struct { + unsigned short hdisplay; /* Number of display pixels horizontally */ + unsigned short hsyncstart; /* Horizontal sync start */ + unsigned short hsyncend; /* Horizontal sync end */ + unsigned short htotal; /* Total horizontal pixels */ + unsigned short vdisplay; /* Number of display pixels vertically */ + unsigned short vsyncstart; /* Vertical sync start */ + unsigned short vsyncend; /* Vertical sync start */ + unsigned short vtotal; /* Total vertical pixels */ + unsigned int flags; /* Mode flags */ + int privsize; /* Size of private */ + INT32 *private; /* Server privates */ +} XF86VidModeModeLine; +.sp +typedef struct { + unsigned int dotclock; /* Pixel clock */ + unsigned short hdisplay; /* Number of display pixels horizontally */ + unsigned short hsyncstart; /* Horizontal sync start */ + unsigned short hsyncend; /* Horizontal sync end */ + unsigned short htotal; /* Total horizontal pixels */ + unsigned short vdisplay; /* Number of display pixels vertically */ + unsigned short vsyncstart; /* Vertical sync start */ + unsigned short vsyncend; /* Vertical sync start */ + unsigned short vtotal; /* Total vertical pixels */ + unsigned int flags; /* Mode flags */ + int privsize; /* Size of private */ + INT32 *private; /* Server privates */ +} XF86VidModeModeInfo; +.LP +\fIMonitor information:\fP +typedef struct { + char* vendor; /* Name of manufacturer */ + char* model; /* Model name */ + float bandwidth; /* Monitor bandwidth */ + unsigned char nhsync; /* Number of horiz sync ranges */ + XF86VidModeSyncRange* hsync; /* Horizontal sync ranges */ + unsigned char nvsync; /* Number of vert sync ranges */ + XF86VidModeSyncRange* vsync; /* Vertical sync ranges */ +} XF86VidModeMonitor; +.sp +typedef struct { + float hi; /* Top of range */ + float lo; /* Bottom of range */ +} XF86VidModeSyncRange; +.fi +.SH DESCRIPTION +These functions provide an interface to the server extension +\fIXFree86-VidModeExtension\fP +which allows the video modes to be +queried and adjusted dynamically and mode switching to be controlled. +Applications that use these functions must be linked with +.ZN -lXxf86vm +.SS "MODELINE FUNCTIONS" +The +.ZN XF86VidModeGetModeLine +function is used to query the settings for the currently selected +video mode. The calling program should pass a pointer to a +.ZN XF86VidModeModeLine +structure that it has already allocated. The function fills in +the fields of the structure. +.PP +If there are any server private values (currently only applicable to +the S3 server) the function will allocate storage for them. +Therefore, if the +.ZN privsize +field is non-zero, the calling program should call +.ZN Xfree(private) +to free the storage. +.PP +.ZN XF86VidModeGetAllModeLines +returns the settings for all video modes. +The calling program supplies the address of a pointer which will be +set by the function to point to an array of +.ZN XF86VidModeModeInfo +structures. The memory occupied by the array is dynamically allocated +by the +.ZN XF86VidModeGetAllModeLines +function and should be freed by the caller. +The first element of the array corresponds to the current video mode. +.PP +The +.ZN XF86VidModeModModeLine +function can be used to change the settings of the current video mode +provided the requested settings are valid (e.g. they don't exceed the +capabilities of the monitor). +.PP +.ig +To add a mode to the list of available modes, the +.ZN XF86VidModeAddModeLine +function can be used. +Assuming the settings are valid, the video mode will be added after +the existing mode which matches the timings specified by the +.ZN aftermode +parameter. +To be considered a match, all of the fields of the given +.ZN XF86VidModeModeInfo +structure must match, except the +.ZN privsize +and +.ZN private +fields. +If the +.ZN aftermode +parameter is zero, the mode will be added +after the current mode. +.PP +.. +Modes can be deleted with the +.ZN XF86VidModeDeleteModeLine +function. The specified mode must match an existing mode. +To be considered a match, all of the fields of the given +.ZN XF86VidModeModeInfo +structure must match, except the +.ZN privsize +and +.ZN private +fields. +If the mode to be deleted is the current mode, a mode switch +to the next mode will occur first. The last remaining mode can not +be deleted. +.PP +The validity of a mode can be checked with the +.ZN XF86VidModeValidateModeLine +function. +If the specified mode can be used by the server (i.e. meets all the +constraints placed upon a mode by the combination of the server, card, +and monitor) the function returns +.ZN MODE_OK , +otherwise it returns a value indicating the reason why the mode is +invalid (as defined in \fIxf86.h\fP) +.SS "MODE SWITCH FUNCTIONS" +When the function +.ZN XF86VidModeSwitchMode +is called, the server will change the video mode to next (or previous) +video mode. The +.ZN XF86VidModeSwitchToMode +function can be used to switch directly to the specified mode. +Matching is as specified in the description of the +.ZN XF86VidModeDeleteModeLine +function above. +The +.ZN XF86VidModeLockModeSwitch +function can be used to allow or disallow mode switching whether +the request to switch modes comes from a call to the +.ZN XF86VidModeSwitchMode +or +.ZN XF86VidModeSwitchToMode +functions or from one of the mode switch key sequences. +.SS "MONITOR FUNCTIONS" +Information known to the server about the monitor is returned by the +.ZN XF86VidModeGetMonitor +function. The +.ZN hsync +and +.ZN vsync +fields each point to an array of +.ZN XF86VidModeSyncRange +structures. The arrays contain +.ZN nhsync +and +.ZN nvsync +elements, respectively. +The +.ZN hi +and +.ZN low +values will be equal if a discreate value was given in the +.ZN XF86Config +file. +.PP +The +.ZN vendor , +.ZN model , +.ZN hsync , +and +.ZN vsync +fields point to dynamically allocated storage that should be freed +by the caller. +.SS "VIEWPORT FUNCTIONS" +The +.ZN XF86VidModeGetViewPort +and +.ZN XF86VidModeSetViewPort +functions can be used to, respectively, query and change the location +of the upper left corner of the viewport into the virtual screen. +.SS "OTHER FUNCTIONS" +The +.ZN XF86VidModeQueryVersion +function can be used to determine the version of the extension +built into the server. +.PP +The function +.ZN XF86VidModeQueryExtension +returns the lowest numbered error and event values +assigned to the extension. +.SH SEE ALSO +XFree86(1), XF86Config(4/5), xvidtune(1) +.SH AUTHORS +Kaleb Keithley, Jon Tombs, David Dawes, and Joe Moss + |