Here's the problem When running script without arguments or switches it should search through all directories and subdirectories of directory where you are. It does not work and I do not know why and it drives me crazy.
This script should find the symbolic link with longest number of "/" in -printf "%l\n" and output it. It should work when there are more links with same number of "/"
this script have also switch -d <number> and it has the same code as above but in find i use also -maxdepth and it works fine so I do not know why this does not work.
Hi, I am using Turbo Linux and needs to install Samba on it. But it said that could not find gcc. My question is how to find out which compiler is working on my system. I tried echo $CC but it gave me nothing. How can I set environmental compiler to c.
Thanks in advance. (8 Replies)
Hi,
Having issues with the . parameter in the find command.
Issuing "find . -name \*.pl" gives me
find: cannot open .: No such device
I got it working by substituting . with *, so "find * -name \*.pl" gives the correct listing.
bin/test.pl
"which find" lists /bin/find.
Anybody... (7 Replies)
Hi guys:
I am trying to delete multiple files in a folder with different names. Below is the script that I was trying, but it doesn't work
**************************
#!/bin/ksh
DATE=`date '+20%y%m%d'`
DEL_DIR=<dir where files have to be deleted>
let DATE2=$(($DATE - 2))
let DATE1=$(($DATE... (12 Replies)
Hi every1:)
I have a problem with find and Pipe to gawk.
Find -name '*.txt' -> works fine.. Gives all the txt file under home directory and sub directories
But when I use it like this (see below).
Find -name '*.txt' | gawk -F '\t' "script" :confused:
It doesn't work.... (22 Replies)
Hi all,
find command not working for me in a perticular directory.The same command is working fine in any other directory.
Following is the command i issued:
find . -type f -print
my question is , is it possbile to disable a command only for a perticular directory ??...of course... (4 Replies)
Hi,
I have a .ksh script which finds all the directories older than 84 days and tries to housekeep. Below is the command used
find * -depth -type d -ctime +84 -exec rm -rf {} \;
The above command lists all the directories ie child and parent directory in descending order which are more... (0 Replies)
Hi
I am trying to list all files in every subdirectory from a given location. However, I realise that 1 folder will have files that I am not interested in. This is using a .csh file to execute
I have tried different scripts but to no avail. My current incarnation is below. Would someone be... (4 Replies)
Hi ,
In /home/etc/files path ran the following command
find . -name 'ABC*' | wc -l
The output of the above command is 25 as expected
In path /home path ran the following command
find . -name '/home/etc/files/ABC*' | wc -l
The output of the abvoe command is 0 .
Why the above... (3 Replies)
find without -name works fine.
find with -name '*' works from interactive bash, but not from cron.
mgr@someplace:~$ crontab -l | grep wsl
17 09 * * * /usr/bin/find /wsbj/logs/mgr/webServiceLogs -type f -mtime +30 > /home/mgr/wsl_find.out
17 09 * * * /usr/bin/find /wsbj/logs/mgr/webServiceLogs... (11 Replies)
Discussion started by: CarloM
11 Replies
LEARN ABOUT SUSE
sdl_pixelformat
SDL_PixelFormat(3) SDL API Reference SDL_PixelFormat(3)NAME
SDL_PixelFormat - Stores surface format information
STRUCTURE DEFINITION
typedef struct SDL_PixelFormat {
SDL_Palette *palette;
Uint8 BitsPerPixel;
Uint8 BytesPerPixel;
Uint8 Rloss, Gloss, Bloss, Aloss;
Uint8 Rshift, Gshift, Bshift, Ashift;
Uint32 Rmask, Gmask, Bmask, Amask;
Uint32 colorkey;
Uint8 alpha;
} SDL_PixelFormat;
STRUCTURE DATA
palette Pointer to the palette, or NULL if the BitsPerPixel>8
BitsPerPixel The number of bits used to represent each pixel in a surface. Usually 8, 16, 24 or 32.
BytesPerPixel The number of bytes used to represent each pixel in a surface. Usually one to four.
[RGBA]mask Binary mask used to retrieve individual color values
[RGBA]loss Precision loss of each color component (2^[RGBA]loss)
[RGBA]shift Binary left shift of each color component in the pixel value
colorkey Pixel value of transparent pixels
alpha Overall surface alpha value
DESCRIPTION
A SDL_PixelFormat describes the format of the pixel data stored at the pixels field of a SDL_Surface. Every surface stores a SDL_PixelFor-
mat in the format field.
If you wish to do pixel level modifications on a surface, then understanding how SDL stores its color information is essential.
8-bit pixel formats are the easiest to understand. Since its an 8-bit format, we have 8 BitsPerPixel and 1 BytesPerPixel. Since BytesPer-
Pixel is 1, all pixels are represented by a Uint8 which contains an index into palette->colors. So, to determine the color of a pixel in a
8-bit surface: we read the color index from surface->pixels and we use that index to read the SDL_Color structure from surface->for-
mat->palette->colors. Like so:
SDL_Surface *surface;
SDL_PixelFormat *fmt;
SDL_Color *color;
Uint8 index;
.
.
/* Create surface */
.
.
fmt=surface->format;
/* Check the bitdepth of the surface */
if(fmt->BitsPerPixel!=8){
fprintf(stderr, "Not an 8-bit surface.
");
return(-1);
}
/* Lock the surface */
SDL_LockSurface(surface);
/* Get the topleft pixel */
index=*(Uint8 *)surface->pixels;
color=fmt->palette->colors[index];
/* Unlock the surface */
SDL_UnlockSurface(surface);
printf("Pixel Color-> Red: %d, Green: %d, Blue: %d. Index: %d
",
color->r, color->g, color->b, index);
.
.
Pixel formats above 8-bit are an entirely different experience. They are considered to be "TrueColor" formats and the color information is
stored in the pixels themselves, not in a palette. The mask, shift and loss fields tell us how the color information is encoded. The mask
fields allow us to isolate each color component, the shift fields tell us the number of bits to the right of each component in the pixel
value and the loss fields tell us the number of bits lost from each component when packing 8-bit color component in a pixel.
/* Extracting color components from a 32-bit color value */
SDL_PixelFormat *fmt;
SDL_Surface *surface;
Uint32 temp, pixel;
Uint8 red, green, blue, alpha;
.
.
.
fmt=surface->format;
SDL_LockSurface(surface);
pixel=*((Uint32*)surface->pixels);
SDL_UnlockSurface(surface);
/* Get Red component */
temp=pixel&fmt->Rmask; /* Isolate red component */
temp=temp>>fmt->Rshift;/* Shift it down to 8-bit */
temp=temp<<fmt->Rloss; /* Expand to a full 8-bit number */
red=(Uint8)temp;
/* Get Green component */
temp=pixel&fmt->Gmask; /* Isolate green component */
temp=temp>>fmt->Gshift;/* Shift it down to 8-bit */
temp=temp<<fmt->Gloss; /* Expand to a full 8-bit number */
green=(Uint8)temp;
/* Get Blue component */
temp=pixel&fmt->Bmask; /* Isolate blue component */
temp=temp>>fmt->Bshift;/* Shift it down to 8-bit */
temp=temp<<fmt->Bloss; /* Expand to a full 8-bit number */
blue=(Uint8)temp;
/* Get Alpha component */
temp=pixel&fmt->Amask; /* Isolate alpha component */
temp=temp>>fmt->Ashift;/* Shift it down to 8-bit */
temp=temp<<fmt->Aloss; /* Expand to a full 8-bit number */
alpha=(Uint8)temp;
printf("Pixel Color -> R: %d, G: %d, B: %d, A: %d
", red, green, blue, alpha);
.
.
.
SEE ALSO
SDL_Surface, SDL_MapRGB
SDL Tue 11 Sep 2001, 23:01 SDL_PixelFormat(3)