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top - downloadIndex: ┃ T V ┃
Length: 14431 (0x385f)
Types: TextFile
Names: »V«
└─⟦85b835f43⟧ Bits:30000549 8mm tape, Rational 1000, Xlib rev 6.00
└─ ⟦0c20f784e⟧ »DATA«
└─⟦1abbe589f⟧
└─⟦059497ac5⟧
└─⟦this⟧
with Xlbt_Arithmetic;
use Xlbt_Arithmetic;
with Xlbt_Basic;
use Xlbt_Basic;
with Xlbt_Image;
use Xlbt_Image;
with Xlbt_Visual;
use Xlbt_Visual;
package Xlbp_Image is
------------------------------------------------------------------------------
-- X Library Images
--
-- Xlbp_Image - Used to create and manipulate images.
------------------------------------------------------------------------------
-- Copyright 1989 - 1991 by Rational, Santa Clara, California.
-- Copyright 1987 - 1989 by Digital Equipment Corporation, Maynard, Mass.
-- Copyright 1987 - 1989 by Massachusetts Institute of Technology,
-- Cambridge, Massachusetts.
--
-- All Rights Reserved.
--
-- Permission to use, copy, modify, and distribute this software and its
-- documentation for any purpose and without fee is hereby granted,
-- provided that the above copyright notice(s) appear in all copies and that
-- both that copyright notice(s) and this permission notice appear in
-- supporting documentation, and that the names of Digital, MIT, or Rational
-- not be used in advertising or publicity pertaining to distribution of
-- the software without specific, written prior permission.
--
-- Digital, MIT, and Rational disclaim all warranties with regard to this
-- software, including all implied warranties of merchantability and fitness,
-- in no event shall Digital, MIT, or Rational be liable for any special,
-- indirect or consequential damages or any damages whatsoever resulting from
-- loss of use, data or profits, whether in an action of contract, negligence
-- or other tortious action, arising out of or in connection with the use or
-- performance of this software.
------------------------------------------------------------------------------
--\f
function X_Create_Image (Display : X_Display;
Visual : X_Visual;
Depth : U_Char;
Format : X_Image_Format;
Offset : U_Short;
Data : U_Char_Array;
Width : U_Short;
Height : U_Short;
Bitmap_Pad : U_Char;
Image_Bytes_Per_Line : U_Short) return X_Image;
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Visual - Specifies the visual type to use.
-- Depth - Specifies the depth of the image.
-- Format - Specifies the image format. X_Y_Pixmap or Z_Pixmap
-- Offset - Specifies the number of pixels to ignore at the
-- beginning of the scanline. This permits the rapid
-- displaying of the image without requiring each
-- scanline to be shifted into position.
-- Data - Specifies the image data.
-- Width - Specifies the width, in pixels, of the image.
-- Height - Specifies the height, in pixels, of the image.
-- Bitmap_Pad - Specifies the quantum of a scanline. The start of
-- one scanline is separated in memory from the start
-- of the next my a multiple of this many bits; 8, 16,
-- or 32.
-- Image_Bytes_Per_Line - Specifies the number of bytes in the image between
-- the start of one scanline and the start of the
-- next. If a 0 is passed then Xlib will assume
-- that the lines are contiguous and will compute
-- this value itself.
--
-- Allocates the memory needed for the X_Image and initializes it. This
-- function does not allocate space for the image itself.
------------------------------------------------------------------------------
function X_Create_Image (Display : X_Display;
Visual : X_Visual;
Depth : U_Char;
Format : X_Image_Format;
Offset : U_Short;
Data : U_Char_List;
Data_Is_Shared : Boolean;
Width : U_Short;
Height : U_Short;
Bitmap_Pad : U_Char;
Image_Bytes_Per_Line : U_Short) return X_Image;
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Visual - Specifies the visual type to use.
-- Depth - Specifies the depth of the image.
-- Format - Specifies the image format. X_Y_Pixmap or Z_Pixmap
-- Offset - Specifies the number of pixels to ignore at the
-- beginning of the scanline. This permits the rapid
-- displaying of the image without requiring each
-- scanline to be shifted into position.
-- Data - Specifies the image data. This list pointer is
-- placed into the new X_Image. Do not free it
-- or the X_Image will be left with a dangling pointer.
-- Data_Is_Shared - Specifies True if the Data is to be shared outside
-- the new X_Image and should not be deallocated when
-- the X_Image is deallocated. False means deallocate
-- the Data when the X_Image is deallocated.
-- Width - Specifies the width, in pixels, of the image.
-- Height - Specifies the height, in pixels, of the image.
-- Bitmap_Pad - Specifies the quantum of a scanline. The start of
-- one scanline is separated in memory from the start
-- of the next my a multiple of this many bits; 8, 16,
-- or 32.
-- Image_Bytes_Per_Line - Specifies the number of bytes in the image between
-- the start of one scanline and the start of the
-- next. If a 0 is passed then Xlib will assume
-- that the lines are contiguous and will compute
-- this value itself.
--
-- Allocates the memory needed for the X_Image and initializes it. This
-- function does not allocate space for the image itself.
------------------------------------------------------------------------------
procedure X_Destroy_Image (Image : in out X_Image);
------------------------------------------------------------------------------
-- Image - Specifies the image to use.
--
-- Frees/destroys an X_Image and deallocates all storage associated with it.
------------------------------------------------------------------------------
procedure X_Add_Pixel (Image : X_Image;
Value : X_Pixel);
------------------------------------------------------------------------------
-- Image - Specifies the image to use.
-- Value - Specifies the pixel value to use.
--
-- Adds a constant value to every pixel in an image.
------------------------------------------------------------------------------
function X_Get_Pixel (Image : X_Image;
X : S_Short;
Y : S_Short) return X_Pixel;
------------------------------------------------------------------------------
-- Image - Specifies the image to use.
-- X - Specifies the X coordinate within the image.
-- Y - Specifies the Y coordinate within the image.
--
-- Returns the pixel value at the X/Y coordinates. They are relative to the
-- origin [0,0] of the image. The pixel value returned is in normalized
-- format; the least significant bytes of the long (32-bit) value is in the
-- least significant byte of the pixel (obtainable via "pixel mod 2**8").
------------------------------------------------------------------------------
procedure X_Put_Pixel (Image : X_Image;
X : S_Short;
Y : S_Short;
Pixel : X_Pixel);
------------------------------------------------------------------------------
-- Image - Specifies the image to use.
-- X - Specifies the X coordinate within the image.
-- Y - Specifies the Y coordinate within the image.
-- Pixel - Specifies the new pixel value.
--
-- Sets the pixel value at the X/Y coordinates. They are relative to the
-- origin [0,0] of the image. The pixel value is in normalized format; the
-- least significant bytes of the long (32-bit) value is in the least
-- significant byte of the pixel (obtainable via "pixel mod 2**8").
------------------------------------------------------------------------------
function X_Sub_Image (Image : X_Image;
X : S_Short;
Y : S_Short;
Width : U_Short;
Height : U_Short) return X_Image;
------------------------------------------------------------------------------
-- Image - Specifies the image to use.
-- X - Specifies the X coordinate within the image.
-- Y - Specifies the Y coordinate within the image.
-- Width - Specifies the width of the subimage.
-- Height - Specifies the height of the subimage.
--
-- Creates a new image that is a subsection of an existing one. It allocates
-- the memory necessary for the new X_Image and returns it. Uses repetitive
-- calls on Get/Put pixel and may be very slow.
------------------------------------------------------------------------------
function X_Get_Image (Display : X_Display;
Drawable : X_Drawable;
X : S_Short;
Y : S_Short;
Width : U_Short;
Height : U_Short;
Plane_Mask : X_Plane_Mask;
Format : X_Image_Format) return X_Image;
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Drawable - Specifies the drawable to use (Window, Pixmap).
-- X - Specifies the X coordinate of the rectangle in the drawable.
-- Y - Specifies the Y coordinate of the rectangle in the drawable.
-- Width - Specifies the width, in pixels, of the rectangle.
-- Height - Specifies the height, in pixels, of the rectangle.
-- Plane_Mask - Specifies the plane mask to sue in creating the image.
-- Format - Specifies the desired format.
--
-- Combines an image in memory with a rectangle of the specified drawable.
------------------------------------------------------------------------------
procedure X_Get_Sub_Image (Display : X_Display;
Drawable : X_Drawable;
X : S_Short;
Y : S_Short;
Width : U_Short;
Height : U_Short;
Plane_Mask : X_Plane_Mask;
Format : X_Image_Format;
Image : X_Image;
Image_X : S_Short;
Image_Y : S_Short);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Drawable - Specifies the drawable to use (Window, Pixmap).
-- X - Specifies the X coordinate of the rectangle in the drawable.
-- Y - Specifies the Y coordinate of the rectangle in the drawable.
-- Width - Specifies the width, in pixels, of the rectangle.
-- Height - Specifies the height, in pixels, of the rectangle.
-- Plane_Mask - Specifies the plane mask to sue in creating the image.
-- Format - Specifies the desired format.
-- Image - Specifies the image to be updated.
-- Image_X - Specifies the X coordinate of the destination rectangle.
-- Image_Y - Specifies the Y coordinate of the destination rectangle.
--
-- Updates a rectangle within the existing image.
------------------------------------------------------------------------------
procedure X_Put_Image (Display : X_Display;
Drawable : X_Drawable;
Gc : X_Gc;
Image : X_Image;
Image_X : U_Short;
Image_Y : U_Short;
X : S_Short;
Y : S_Short;
Width : U_Short;
Height : U_Short);
------------------------------------------------------------------------------
-- Display - Specifies the display to use.
-- Drawable - Specifies the drawable to use (Window, Pixmap).
-- Gc - Specifies the graphics context to use.
-- Image - Specifies the image you want combined with the rectangle.
-- Image_X - Specifies the X coordinate of the rectangle in the image.
-- Image_Y - Specifies the Y coordinate of the rectangle in the image.
-- X - Specifies the X coordinate of the rectangle in the drawable.
-- Y - Specifies the Y coordinate of the rectangle in the drawable.
-- Width - Specifies the width, in pixels, of the rectangle.
-- Height - Specifies the height, in pixels, of the rectangle.
--
-- Combines an image in memory with a rectangle of the specified drawable.
------------------------------------------------------------------------------
end Xlbp_Image;