makecol15_dither(3alleg4) Allegro manual makecol15_dither(3alleg4)NAME
makecol15_dither, makecol16_dither - Calculates a dithered 15 or 16-bit RGB value. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int makecol15_dither(int r, int g, int b, int x, int y);
int makecol16_dither(int r, int g, int b, int x, int y);
DESCRIPTION
Given both a color value and a pixel coordinate, calculate a dithered 15 or 16-bit RGB value. This can produce better results when reducing
images from truecolor to hicolor. In addition to calling these functions directly, hicolor dithering can be automatically enabled when
loading graphics by calling the set_color_conversion() function, for example set_color_conversion(COLORCONV_REDUCE_TRUE_TO_HI | COLOR-
CONV_DITHER).
Example:
int pixel1, pixel2;
/* The following two color values MAY be different. */
pixel1 = makecol16_dither(255, 192, 64, 0, 0);
pixel2 = makecol16_dither(255, 192, 64, 1, 0);
RETURN VALUE
Returns the RGB value dithered for the specified coordinate.
SEE ALSO makecol(3alleg4), makecol8(3alleg4), set_color_conversion(3alleg4)Allegro version 4.4.2 makecol15_dither(3alleg4)
Check Out this Related Man Page
makecol15_dither(3alleg4) Allegro manual makecol15_dither(3alleg4)NAME
makecol15_dither, makecol16_dither - Calculates a dithered 15 or 16-bit RGB value. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int makecol15_dither(int r, int g, int b, int x, int y);
int makecol16_dither(int r, int g, int b, int x, int y);
DESCRIPTION
Given both a color value and a pixel coordinate, calculate a dithered 15 or 16-bit RGB value. This can produce better results when reducing
images from truecolor to hicolor. In addition to calling these functions directly, hicolor dithering can be automatically enabled when
loading graphics by calling the set_color_conversion() function, for example set_color_conversion(COLORCONV_REDUCE_TRUE_TO_HI | COLOR-
CONV_DITHER).
Example:
int pixel1, pixel2;
/* The following two color values MAY be different. */
pixel1 = makecol16_dither(255, 192, 64, 0, 0);
pixel2 = makecol16_dither(255, 192, 64, 1, 0);
RETURN VALUE
Returns the RGB value dithered for the specified coordinate.
SEE ALSO makecol(3alleg4), makecol8(3alleg4), set_color_conversion(3alleg4)Allegro version 4.4.2 makecol15_dither(3alleg4)
Manufacturer Links
General Information
Home Page: IBM United States
Documentation/Information: IBM System p - UNIX servers: Support and services
pSeries and AIX Information Center
Developerworks AIX Wiki: AIX Wiki
AIX for System Administrators
In-depth information from IBM:
IBM... (0 Replies)
Not sure if anyone is interested but I am just getting into UNIX like shell scripting...
I have great interest in pseudo-animations in text mode and accessing HW like /dev/dsp for example...
...
Have fun, I do... ;o)
# !/bin/sh
#
# Bargraph_Generator.sh
#
# A DEMO 6 bit coloured... (0 Replies)
For a starter I know the braces are NOT in the code...
Consider these code snippets:-
#!/bin/bash --posix
x=0
somefunction()
if
then
echo "I am here."
fi
# somefunction
#!/bin/bash --posix
x=0
somefunction()
if (2 Replies)
For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this:
If you don't have gcc on your system:
0. Download and install the Command Line Tools for Xcode package from Sign In - Apple *
1. Download the dash... (2 Replies)
Hearing Aid...
Hi folks yet another bizarre piece of code that is Apple OSX 10.12.x to at least 10.14.1 specific.
It requires only a default OSX install, and the internal microphone along with an external headphone assembly.
Pre-amble, 14-02-2019:
For over 3 weeks now I have been suffering a... (3 Replies)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)
Greetings,
I'm trying to delete a file with a weird name from within Terminal on a Mac.
It's a very old file (1992) with null characters in the name: ââWord FinderÂŽ Plusâ˘.
Here are some examples of what I've tried:
12FX009:5 dpontius$ ls
ââWord FinderÂŽ Plusâ˘
12FX009:5 dpontius$ rm... (29 Replies)
I have to print the number of stars that increases on each line from the minimum number until it reaches the maximum number, and then decreases until it goes back to the minimum number. After printing out the lines of stars, it should also print the total number of stars printed.
I have tried... (13 Replies)
Hi all...
Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default.
Many tricky terminal escape codes are not catered for so I had to create workarounds.
One thing I searched for was this:
Passing perl variable to shell command
AND, @Neo this was... (15 Replies)
Well, guys I saw a question about GOTO for Python.
So this gave me the inspiration to attempt a GOTO function for 'dash', (bash and ksh too).
Machine: MBP OSX 10.14.3, default bash terminal, calling '#!/usr/local/bin/dash'...
This is purely a fun project to see if it is possible in PURE... (3 Replies)
I am sharing a code snippet.
for (( i=0; i<=$(( $count -1 )); i++ ))
do
first=${barr2}
search=${barr1}
echo $first
echo "loop begins"
for (( j=0; j<=5000; j++ ))
do
if } == $search ]]; then
echo $j
break;
fi
done
second=${harr2}
echo $second (2 Replies)
Hi All,
I'm having a python script: test.py in /path/to/script/test.py
I'm using a properties file: test_properties.py (it is having values as dictionary{}) which is in same DIR as the script.
Sample Properties file:
params = {
'target_db' : 'a1_db'
'src_db' : ... (15 Replies)