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diff --git a/libX11/man/XInitImage.man b/libX11/man/XInitImage.man new file mode 100644 index 000000000..e2c82a6f7 --- /dev/null +++ b/libX11/man/XInitImage.man @@ -0,0 +1,315 @@ +.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium +.\" +.\" Permission is hereby granted, free of charge, to any person obtaining +.\" a copy of this software and associated documentation files (the +.\" "Software"), to deal in the Software without restriction, including +.\" without limitation the rights to use, copy, modify, merge, publish, +.\" distribute, sublicense, and/or sell copies of the Software, and to +.\" permit persons to whom the Software is furnished to do so, subject to +.\" the following conditions: +.\" +.\" The above copyright notice and this permission notice shall be included +.\" in all copies or substantial portions of the Software. +.\" +.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR +.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +.\" OTHER DEALINGS IN THE SOFTWARE. +.\" +.\" Except as contained in this notice, the name of the X Consortium shall +.\" not be used in advertising or otherwise to promote the sale, use or +.\" other dealings in this Software without prior written authorization +.\" from the X Consortium. +.\" +.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by +.\" Digital Equipment Corporation +.\" +.\" Portions Copyright \(co 1990, 1991 by +.\" Tektronix, Inc. +.\" +.\" Permission to use, copy, modify and distribute this documentation for +.\" any purpose and without fee is hereby granted, provided that the above +.\" copyright notice appears in all copies and that both that copyright notice +.\" and this permission notice appear in all copies, and that the names of +.\" Digital and Tektronix not be used in in advertising or publicity pertaining +.\" to this documentation without specific, written prior permission. +.\" Digital and Tektronix makes no representations about the suitability +.\" of this documentation for any purpose. +.\" It is provided ``as is'' without express or implied warranty. +.\" +.\" $XFree86: xc/doc/man/X11/XCreImage.man,v 1.2 2001/01/27 18:19:57 dawes Exp $ +.\" +.ds xT X Toolkit Intrinsics \- C Language Interface +.ds xW Athena X Widgets \- C Language X Toolkit Interface +.ds xL Xlib \- C Language X Interface +.ds xC Inter-Client Communication Conventions Manual +.na +.de Ds +.nf +.\\$1D \\$2 \\$1 +.ft 1 +.\".ps \\n(PS +.\".if \\n(VS>=40 .vs \\n(VSu +.\".if \\n(VS<=39 .vs \\n(VSp +.. +.de De +.ce 0 +.if \\n(BD .DF +.nr BD 0 +.in \\n(OIu +.if \\n(TM .ls 2 +.sp \\n(DDu +.fi +.. +.de FD +.LP +.KS +.TA .5i 3i +.ta .5i 3i +.nf +.. +.de FN +.fi +.KE +.LP +.. +.de IN \" send an index entry to the stderr +.. +.de C{ +.KS +.nf +.D +.\" +.\" choose appropriate monospace font +.\" the imagen conditional, 480, +.\" may be changed to L if LB is too +.\" heavy for your eyes... +.\" +.ie "\\*(.T"480" .ft L +.el .ie "\\*(.T"300" .ft L +.el .ie "\\*(.T"202" .ft PO +.el .ie "\\*(.T"aps" .ft CW +.el .ft R +.ps \\n(PS +.ie \\n(VS>40 .vs \\n(VSu +.el .vs \\n(VSp +.. +.de C} +.DE +.R +.. +.de Pn +.ie t \\$1\fB\^\\$2\^\fR\\$3 +.el \\$1\fI\^\\$2\^\fP\\$3 +.. +.de ZN +.ie t \fB\^\\$1\^\fR\\$2 +.el \fI\^\\$1\^\fP\\$2 +.. +.de hN +.ie t <\fB\\$1\fR>\\$2 +.el <\fI\\$1\fP>\\$2 +.. +.de NT +.ne 7 +.ds NO Note +.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2 +.if \\n(.$ .if !'\\$1'C' .ds NO \\$1 +.ie n .sp +.el .sp 10p +.TB +.ce +\\*(NO +.ie n .sp +.el .sp 5p +.if '\\$1'C' .ce 99 +.if '\\$2'C' .ce 99 +.in +5n +.ll -5n +.R +.. +. \" Note End -- doug kraft 3/85 +.de NE +.ce 0 +.in -5n +.ll +5n +.ie n .sp +.el .sp 10p +.. +.ny0 +.TH XCreateImage __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS" +.SH NAME +XInitImage, XCreateImage, XGetPixel, XPutPixel, XSubImage, XAddPixel, XDestroyImage \- image utilities +.SH SYNTAX +.HP +Status XInitImage\^(\^XImage *\fIimage\fP\^); +.HP +XImage *XCreateImage\^(\^Display *\fIdisplay\fP\^, Visual *\fIvisual\fP\^, +unsigned int \fIdepth\fP\^, int \fIformat\fP\^, int \fIoffset\fP\^, char +*\fIdata\fP\^, unsigned int \fIwidth\fP\^, unsigned int \fIheight\fP\^, int +\fIbitmap_pad\fP\^, int \fIbytes_per_line\fP\^); +.HP +unsigned long XGetPixel\^(\^XImage *\fIximage\fP\^, int \fIx\fP\^, int +\fIy\fP\^); +.HP +int XPutPixel\^(\^XImage *\fIximage\fP\^, int \fIx\fP\^, int \fIy\fP\^, +unsigned long \fIpixel\fP\^); +.HP +XImage *XSubImage\^(\^XImage *\fIximage\fP\^, int \fIx\fP\^, int \fIy\fP\^, +unsigned int \fIsubimage_width\fP\^, unsigned int \fIsubimage_height\fP\^); +.HP +int XAddPixel\^(\^XImage *\fIximage\fP\^, long \fIvalue\fP\^); +.HP +int XDestroyImage\^(\^XImage *\^\fIximage\fP\^); +.SH ARGUMENTS +.IP \fIbitmap_pad\fP 1i +Specifies the quantum of a scanline (8, 16, or 32). +In other words, the start of one scanline is separated in client memory from +the start of the next scanline by an integer multiple of this many bits. +.IP \fIbytes_per_line\fP 1i +Specifies the number of bytes in the client image between +the start of one scanline and the start of the next. +.IP \fIdata\fP 1i +Specifies the image data. +.IP \fIdepth\fP 1i +Specifies the depth of the image. +.IP \fIdisplay\fP 1i +Specifies the connection to the X server. +.IP \fIformat\fP 1i +Specifies the format for the image. +You can pass +.ZN XYBitmap , +.ZN XYPixmap , +or +.ZN ZPixmap . +.IP \fIheight\fP 1i +Specifies the height of the image, in pixels. +.IP \fIoffset\fP 1i +Specifies the number of pixels to ignore at the beginning of the scanline. +.IP \fIpixel\fP 1i +Specifies the new pixel value. +.IP \fIsubimage_height\fP 1i +Specifies the height of the new subimage, in pixels. +.IP \fIsubimage_width\fP 1i +Specifies the width of the new subimage, in pixels. +.IP \fIvalue\fP 1i +Specifies the constant value that is to be added. +.IP \fIvisual\fP 1i +Specifies the +.ZN Visual +structure. +.IP \fIwidth\fP 1i +Specifies the width of the image, in pixels. +.IP \fIximage\fP 1i +Specifies the image. +.IP \fIx\fP 1i +.br +.ns +.IP \fIy\fP 1i +Specify the x and y coordinates. +.SH DESCRIPTION +The +.ZN XInitImage +function initializes the internal image manipulation routines of an +image structure, based on the values of the various structure members. +All fields other than the manipulation routines must already be initialized. +If the bytes_per_line member is zero, +.ZN XInitImage +will assume the image data is contiguous in memory and set the +bytes_per_line member to an appropriate value based on the other +members; otherwise, the value of bytes_per_line is not changed. +All of the manipulation routines are initialized to functions +that other Xlib image manipulation functions need to operate on the +type of image specified by the rest of the structure. +.LP +This function must be called for any image constructed by the client +before passing it to any other Xlib function. +Image structures created or returned by Xlib do not need to be +initialized in this fashion. +.LP +This function returns a nonzero status if initialization of the +structure is successful. It returns zero if it detected some error +or inconsistency in the structure, in which case the image is not changed. +.LP +The +.ZN XCreateImage +function allocates the memory needed for an +.ZN XImage +structure for the +specified display but does not allocate space for the image itself. +Rather, it initializes the structure byte-order, bit-order, and bitmap-unit +values from the display and returns a pointer to the +.ZN XImage +structure. +The red, green, and blue mask values are defined for Z format images only +and are derived from the +.ZN Visual +structure passed in. +Other values also are passed in. +The offset permits the rapid displaying of the image without requiring each +scanline to be shifted into position. +If you pass a zero value in bytes_per_line, +Xlib assumes that the scanlines are contiguous +in memory and calculates the value of bytes_per_line itself. +.LP +Note that when the image is created using +.ZN XCreateImage , +.ZN XGetImage , +or +.ZN XSubImage , +the destroy procedure that the +.ZN XDestroyImage +function calls frees both the image structure +and the data pointed to by the image structure. +.LP +The basic functions used to get a pixel, set a pixel, create a subimage, +and add a constant value to an image are defined in the image object. +The functions in this section are really macro invocations of the functions +in the image object and are defined in +.hN X11/Xutil.h . +.LP +The +.ZN XGetPixel +function returns the specified pixel from the named image. +The pixel value is returned in normalized format (that is, +the least significant byte of the long is the least significant byte +of the pixel). +The image must contain the x and y coordinates. +.LP +The +.ZN XPutPixel +function overwrites the pixel in the named image with the specified pixel value. +The input pixel value must be in normalized format +(that is, the least significant byte of the long is the least significant +byte of the pixel). +The image must contain the x and y coordinates. +.LP +The +.ZN XSubImage +function creates a new image that is a subsection of an existing one. +It allocates the memory necessary for the new +.ZN XImage +structure +and returns a pointer to the new image. +The data is copied from the source image, +and the image must contain the rectangle defined by x, y, subimage_width, +and subimage_height. +.LP +The +.ZN XAddPixel +function adds a constant value to every pixel in an image. +It is useful when you have a base pixel value from allocating +color resources and need to manipulate the image to that form. +.LP +The +.ZN XDestroyImage +function deallocates the memory associated with the +.ZN XImage +structure. +.SH "SEE ALSO" +XPutImage(3X11) +.br +\fI\*(xL\fP |