pic_read.cpp File Reference

#include "pic_rw.h"
#include <netinet/in.h>
#include <iostream>
#include <qimage.h>
#include <algorithm>

Include dependency graph for pic_read.cpp:

Go to the source code of this file.

Macros
#define	CHANNEL_BYTE(ch, mask)   (( ch & mask) ? 1 : 0)
#define	FAIL()

Functions
static int	channels2bpp (char channels)
static int	decodeRLE (QIODevice *dev, void *row, unsigned max, unsigned bpp, unsigned channels)
static unsigned	getNumChannels (PICChannel *channels)
bool	hasAlpha (PICChannel *channels)
static void	makeComponentMap (unsigned channel, unsigned char *cmap)
static void	pic2RGBA (unsigned char *src_pixel, unsigned char *target_pixel, unsigned char *cmap, unsigned components)
void	pic_read (QIODevice *dev, QImage *result)
bool	picReadHeader (QIODevice *dev, PICHeader *hdr, bool peek)
static bool	readChannels (QIODevice *dev, PICChannel *channels, int &bpp)
static bool	readRow (QIODevice *dev, unsigned *row, unsigned width, PICChannel *channels)

Macro Definition Documentation

#define CHANNEL_BYTE	(		ch,
			mask
	)		(( ch & mask) ? 1 : 0)

Definition at line 61 of file pic_read.cpp.

#define FAIL

(

)

Value:

{ \
    std::cout << "ERROR Reading PIC!" << std::endl; \
    return; \
}

Definition at line 245 of file pic_read.cpp.

Function Documentation

static int channels2bpp ( char  channels )

static

Gets the channels definition and returns the number of bytes per pixel.

Parameters

channels

The channels bitfield

Returns

The number of bytes per pixel

Definition at line 68 of file pic_read.cpp.

static int decodeRLE ( QIODevice *  dev, void *  row, unsigned  max, unsigned  bpp, unsigned  channels  )

static

Decodes a Run-lenght encoded chunk.

Parameters

dev	The device to read from
row	The row pointer to write to
max	The maximum length to write
channels	The channels header

Returns

The number of generated pixels

No repetitions

Definition at line 152 of file pic_read.cpp.

static unsigned getNumChannels ( PICChannel *  channels )

inlinestatic

Counts the number of channels in the PICChannel header.

Parameters

channels

The header

Returns

The number of used channels

Definition at line 132 of file pic_read.cpp.

bool hasAlpha

(

PICChannel *

channels

)

Definition at line 250 of file pic_read.cpp.

static void makeComponentMap ( unsigned  channel, unsigned char *  cmap  )

inlinestatic

Makes a component map based on the channels info.

Parameters

channels	The channel information
cmap	The component map to be built

Definition at line 101 of file pic_read.cpp.

static void pic2RGBA ( unsigned char *  src_pixel, unsigned char *  target_pixel, unsigned char *  cmap, unsigned  components  )

inlinestatic

Converts a PIC pixel to 32bits RGBA.

Parameters

src_pixel	The source PIC pixel as readed from file
target_pixel	The target buffer where to write the pixel info
cmap	The component map that maps each component in PIC format to RGBA format
components	The number of components in the source pixel

Definition at line 121 of file pic_read.cpp.

void pic_read	(	QIODevice *	dev,
		QImage *	result
	)

KDE image reading function.

Pic read handler for Qt / KDE.

Must have this exact name in order to work

Definition at line 264 of file pic_read.cpp.

bool picReadHeader	(	QIODevice *	dev,
		PICHeader *	hdr,
		bool	peek
	)

PIC_RW - Qt PIC Support Copyright (C) 2007 Ruben Lopez r.lop.nosp@m.ez@b.nosp@m.ren.e.nosp@m.s

Reads the PIC header and checks that it is OK.

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Reads the PIC header and checks that it is OK

Parameters

dev	The QT device to read from
hdr	A pointer to the PIC header
peek	Keep bytes in the device

Returns

true on success

Definition at line 41 of file pic_read.cpp.

static bool readChannels ( QIODevice *  dev, PICChannel *  channels, int &  bpp  )

static

Reads the channels info.

Parameters

dev	The QT device to read from
channels	A pointer to 8 channels

Returns

true on success

Definition at line 81 of file pic_read.cpp.

static bool readRow ( QIODevice *  dev, unsigned *  row, unsigned  width, PICChannel *  channels  )

static

Reads a row from the file.

Parameters

dev	The device to read from
row	The row pointer to write to
width	The image width
bpp	The bytes per pixel
channels	The channels header info

Definition at line 215 of file pic_read.cpp.