Hi all, I need to category the processes in my system with awk. And for now, there are several command with similar name, so i have to match more than one pattern to pick it out. for instance:
binrundb
the string1, 2 & 3 may contain word, number, blank or "/". The "bin" should be ahead "rundb"... (5 Replies)
Am trying to remove urls from text strings in PERL. I have the following but it does not seem to work:
$remarks =~ s/www\.\s+\.com//gi;
In English, I want to look for www. then I want to delete the www. and everything after it until I hit a space (but not including the space).
It's not... (2 Replies)
hi guys,
insert into /*<new>*/abc_db.tbl_name
this is should be replaced to
insert into /*<new>*/${new}.tbl_name
it should use '.' as delimiter and replace
is there any way to do it using sed (6 Replies)
Hello, i am splitting files and sometimes the string of the pattern doesnt exist in the input file it starts for example with 00:00:01. So the output is completely desorganized, is there any way of putting a replacement string in the pattern so it will grab all the times from 00:**:** to first... (0 Replies)
Hello
i have go the following result from performing 2 testing using the same file.
I have used unix script to extract the result because the files are many as shown below.
01_gravity.f.tcov 7 3 42.86
02_gravity.f.tcov 9 4 80.86... (4 Replies)
I have a log file that display the serial output coming from different places. Sometime the string in search gets clobbered with the other strings and consequently change form. For example:
serial ouput:
--------------
hello world!
done with network
configuring asic registers
comJan 1... (2 Replies)
I am trying to break a string into separate fields and print the field that matches a pattern. I am using awk at the moment and have gotten this far:
awk '{for(i=1;i<=NF;++i)print "\t" $i}' longstring
This breaks the string into fields and prints each field on a separate line.
I want to add... (2 Replies)
Hi,
I have long string in 2nd field, as shown below:
REF1 | CLESCLJSCSHSCSMSCSNSCSRSCUDSCUFSCU7SCV1SCWPSCXGPDBACAPA0DHDPDMESED6
REF2 | SBR4PCBFPCDRSCSCG3SCHEBSCKNSCKPSCLLSCMCZXTNPCVFPCV6P4KL0DMDSDSASEWG
I have a group of fixed patterns which can occur in these long strings & only... (11 Replies)
Hi Experts,
I am finding difficulty to get exact match:
file
OPERATING_SYSTEM=HP-UX
LOOPBACK_ADDRESS=127.0.0.1
INTERFACE_NAME="lan3"
IP_ADDRESS="10.53.52.241"
SUBNET_MASK="255.255.255.192"
BROADCAST_ADDRESS=""
INTERFACE_STATE=""
DHCP_ENABLE=0
INTERFACE_NAME="lan3:1"... (6 Replies)
Discussion started by: rveri
6 Replies
LEARN ABOUT REDHAT
sdl_pixelformat
SDL_PixelFormat(3) SDL API Reference SDL_PixelFormat(3)NAME
SDL_PixelFormat- Stores surface format information
STRUCTURE DEFINITION
typedef struct{
SDL_Palette *palette;
Uint8 BitsPerPixel;
Uint8 BytesPerPixel;
Uint32 Rmask, Gmask, Bmask, Amask;
Uint8 Rshift, Gshift, Bshift, Ashift;
Uint8 Rloss, Gloss, Bloss, Aloss;
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)