unpack zips in src to better compression

This commit is contained in:
2022-10-20 13:28:49 +02:00
parent e25403bd5f
commit 87eb27f562
447 changed files with 55306 additions and 0 deletions

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PLUGINS = \
bmp \
degas \
eureka \
gif \
godpaint \
img \
jpg \
neochrome \
png \
tga \
tiff
default: $(PLUGINS)
.PHONY: $(PLUGINS)
$(PLUGINS):
$(MAKE) -C $@ $(MAKECMDGOALS) CROSS=yes
dist:
rm -rf codecs
mkdir codecs
for f in $(PLUGINS); do cp $$f/*.ldg codecs; done
clean: $(PLUGINS)
rm -f *~ *.ldg

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STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer -finline-functions
CPU = -m68020-60
LIB = -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) bmpldg.o
PROGRAM = bmp.ldg
include ../../../common.mak

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#include "zview.h"
#define fill4B(a) ( ( 4 - ( (a) % 4 ) ) & 0x03)
boolean CDECL reader_init( const char *name, IMGINFO info);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
void CDECL reader_quit( IMGINFO info);
void CDECL init( void);
PROC BMPFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit}
};
LDGLIB bmp_plugin =
{
0x0200, /* Plugin version */
5, /* Number of plugin's functions */
BMPFunc, /* List of functions */
"BMP", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
1L /* Howmany file type are supported by this plugin */
};
/*==================================================================================*
* uint32 ToL: *
* Transform a unsigned long from little to big endian. *
*----------------------------------------------------------------------------------*
* input: *
* puffer -> pointer to the little endian long to convert. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
uint32 ToL( uint8 * puffer)
{
return ( puffer[0] | ( puffer[1] << 8) | ( puffer[2] << 16) | ( puffer[3] << 24));
}
/*==================================================================================*
* uint16 ToS: *
* Transform a unsigned word from little to big endian. *
*----------------------------------------------------------------------------------*
* input: *
* puffer -> pointer to the little endian word to convert. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
uint16 ToS( uint8 *puffer)
{
return ( puffer[0] | ( puffer[1] << 8));
}
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
uint8 buff[4], header_buffer[50], *line_buffer;
int16 handle, compressed;
uint32 bisize, line_size, skip;
if ( ( handle = ( int16) Fopen( name, 0)) < 0)
return FALSE;
if ( Fread( handle, 2, buff) != 2)
{
Fclose( handle);
return FALSE;
}
if ( buff[0] != 'B' || buff[1] != 'M' )
{
Fclose( handle);
return FALSE;
}
if ( Fread( handle, 0x10, header_buffer) != 0x10)
{
Fclose( handle);
return FALSE;
}
bisize = ToL( &header_buffer[12]);
if( bisize != 40uL)
{
/* OS/2 BMP No supported */
Fclose( handle);
return FALSE;
}
else
{
/* Window */
Fread( handle, 36L, header_buffer);
info->width = (uint16)ToL (&header_buffer[0x00]);
info->height = (uint16)ToL (&header_buffer[0x04]);
info->planes = ToS (&header_buffer[0x0A]);
compressed = (int16)ToL (&header_buffer[0x0C]);
}
if( compressed)
{
Fclose( handle);
return FALSE;
}
switch( info->planes)
{
case 1:
line_size = ( info->width >> 3) + ( info->width % 8 ? 1 : 0);
break;
case 4:
line_size = ( info->width >> 1) + info->width % 2;
break;
case 8:
line_size = info->width;
break;
case 24:
line_size = info->width * 3;
break;
default:
Fclose( handle);
return FALSE;
}
skip = fill4B( line_size);
line_size += skip;
line_buffer = malloc( line_size + 256L);
if( line_buffer == NULL)
{
Fclose( handle);
return FALSE;
}
info->real_width = info->width;
info->real_height = info->height;
info->components = ( info->planes == 1 ? 1 : 3);
info->indexed_color = FALSE;
info->memory_alloc = TT_RAM;
info->page = 1;
info->delay = 0;
info->orientation = DOWN_TO_UP;
info->num_comments = 0;
info->max_comments_length = 0;
info->colors = 1uL << (uint32)info->planes;
info->_priv_ptr = ( void*)line_buffer;
info->_priv_var = ( int32)handle;
info->_priv_var_more = ( int32)line_size;
strcpy( info->info, "Window BitMaP");
strcpy( info->compression, "None");
if( info->planes <= 8)
{
register int16 i;
for ( i = 0; i < info->colors; i++)
{
Fread( handle, 4L, buff);
info->palette[i].blue = buff[0];
info->palette[i].green = buff[1];
info->palette[i].red = buff[2];
}
}
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
int16 width, j, k, i, handle = ( int16)info->_priv_var;
uint8 buff[2], *line_buffer = ( uint8*)info->_priv_ptr;
uint32 line_size = info->_priv_var_more;
if( Fread( handle, line_size, line_buffer) != line_size)
return FALSE;
switch( info->planes)
{
case 1:
width = info->width >> 3;
for ( j = 0; j < width; j++)
{
buff[0] = line_buffer[j];
for ( k = 0; k < 8; k++)
{
if (buff[0] & 0x80)
*buffer++ = 0xff;
else
*buffer++ = 0x00;
buff[0] = buff[0] << 1;
}
}
if ( info->width % 8)
{
buff[0] = line_buffer[j+1];
for ( k = 0; k < info->width % 8; k++)
{
if (buff[0] & 0x80)
*buffer++ = 0xff;
else
*buffer++ = 0x00;
buff[0] = buff[0] << 1;
}
}
break;
case 4:
width = info->width >> 1;
for ( j = 0; j < width; j++)
{
buff[1] = line_buffer[j] >> 4;
buff[2] = line_buffer[j] & 0x0f;
*buffer++ = info->palette[buff[1]].red;
*buffer++ = info->palette[buff[1]].green;
*buffer++ = info->palette[buff[1]].blue;
*buffer++ = info->palette[buff[2]].red;
*buffer++ = info->palette[buff[2]].green;
*buffer++ = info->palette[buff[2]].blue;
}
if ( info->width % 2)
{
buff[1] = line_buffer[j+1] >> 4;
*buffer++ = info->palette[buff[1]].red;
*buffer++ = info->palette[buff[1]].green;
*buffer++ = info->palette[buff[1]].blue;
}
break;
case 8:
for ( j = 0; j < info->width; j++)
{
*buffer++ = info->palette[line_buffer[j]].red;
*buffer++ = info->palette[line_buffer[j]].green;
*buffer++ = info->palette[line_buffer[j]].blue;
}
break;
case 24:
for ( i = j = 0; j < info->width; j++, i += 3)
{
*buffer++ = line_buffer[i+2];
*buffer++ = line_buffer[i+1];
*buffer++ = line_buffer[i];
}
break;
default:
return FALSE;
}
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function must be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
return;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
free( info->_priv_ptr);
Fclose( ( int16)info->_priv_var);
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &bmp_plugin);
return( 0);
}

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Ty Coon, President of Vice
That's all there is to it!

View File

@@ -0,0 +1,58 @@
#ifndef __2B_UNIVERSAL_TYPES__
#define __2B_UNIVERSAL_TYPES__
#ifndef HAVE_INTS_DEFINED
typedef signed char int8;
typedef unsigned char uint8;
typedef signed long int32;
typedef unsigned long uint32;
#endif
typedef int32 fix31;
#ifdef __GNUC__
#ifndef HAVE_INTS_DEFINED
typedef signed short int16;
typedef unsigned short uint16;
#endif
#define __2B_HAS64_SUPPORT /* Compiler supports 64 Bit Integers */
typedef signed long long int64;
typedef unsigned long long uint64;
/* typedef unsigned long long loff_t; */
#else /* Compiler doesn't support 64 Bit Integers */
typedef signed int int16;
typedef unsigned int uint16;
typedef struct
{
int32 hi;
uint32 lo;
} int64;
typedef struct
{
int32 hi;
uint32 lo;
} loff_t;
typedef struct
{
uint32 hi;
uint32 lo;
} uint64;
#endif
#ifndef HAVE_BOOLEAN
#ifdef __GNUC__
typedef int boolean;
typedef int BOOL;
#define HAVE_BOOLEAN
#else
typedef int32 boolean;
typedef int32 BOOL;
#define HAVE_BOOLEAN
#endif
#endif
#endif

View File

@@ -0,0 +1,121 @@
/*
* LDG plugin.
* Copyright (c) 2004-2005 Zorro ( zorro270@yahoo.fr)
*
* This plugin 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 2.1 of the License, or (at your option) any later version.
*
* This plugin 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
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "types2b.h"
#include <osbind.h>
#include <mintbind.h>
#include <mint/falcon.h>
#include <mint/cookie.h>
#include <setjmp.h>
#include <mt_gem.h>
#include <ldg.h>
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
#ifndef MIN
#define MAX(a,b) ((a)>(b)?(a):(b))
#define MIN(a,b) ((a)<(b)?(a):(b))
#endif
#define M_EXIF 0xE1
#define UP_TO_DOWN 0
#define DOWN_TO_UP 1
#define ST_RAM 0
#define TT_RAM 1
#define GOLBAL_ERROR 0
#define DSP_ERROR 1
#define PROGRESSIVE_JPG 2
#define ALL_OK 3
typedef struct _img_data
{
int16 imagecount;
uint16 delay[1024];
uint8 *image_buf[1024];
} img_data;
typedef struct _txt_data
{
int16 lines; /* Number of lines in the text */
int16 max_lines_length; /* The length of the greater line ( in nbr char) */
int8 *txt[256];
} txt_data;
typedef struct
{
uint8 red;
uint8 green;
uint8 blue;
} COLOR_MAP;
typedef struct _img_info *IMGINFO;
typedef struct _img_info
{
/* Data returned by the decoder Picture's initialisation */
uint16 width; /* Picture width */
uint16 height; /* Picture Height */
uint16 components; /* Picture components */
uint16 planes; /* Picture bits by pixel */
uint32 colors; /* Picture colors number */
int16 orientation; /* picture orientation: UP_TO_DOWN or DONW_TO_UP ( ex: TGA) */
uint16 page; /* Number of page/image in the file */
uint16 delay; /* Animation delay in 200th sec. between each frame. */
uint16 num_comments; /* Lines in the file's comment. ( 0 if none) */
uint16 max_comments_length; /* The length of the greater line in the comment */
int16 indexed_color; /* Picture has a palette: 0) No 1) Yes */
int16 memory_alloc; /* where to do the memory allocation for the reader_read
function buffer, possible values are ST_RAM or TT_RAM */
COLOR_MAP palette[256]; /* Palette in standard RGB format */
/* data send to the codec */
uint32 background_color; /* The wanted background's color in hexa */
int16 thumbnail; /* 1 if true else 0.
Some format have thumbnail inside the picture, if 1, we
want only this thumbnail and not the image itself */
uint16 page_wanted; /* The wanted page to get for the reader_read() function
The first page is 0 and the last is img_info->page - 1 */
/* The following variable are only for Information Prupose, the zview doesn't
use it for decoding routine but only for the information dialog */
int8 info[40]; /* Picture's info, for ex: "Gif 87a" */
int8 compression[5]; /* Compression type, ex: "LZW" */
uint16 real_width; /* Real picture width( if the thumbnail variable is 1) */
uint16 real_height; /* Ral picture Height( if the thumbnail variable is 1) */
/* Private data for the plugin */
void *_priv_ptr;
void *_priv_ptr_more;
void *__priv_ptr_more;
int32 _priv_var;
int32 _priv_var_more;
} img_info;

View File

@@ -0,0 +1,13 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer -finline-functions
CPU = -m68020-60
LIB = -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) degasldg.o
PROGRAM = degas.ldg
include ../../../common.mak

View File

@@ -0,0 +1,503 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
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license version number, you may choose any version ever published by
the Free Software Foundation.
14. If you wish to incorporate parts of the Library into other free
programs whose distribution conditions are incompatible with these,
write to the author to ask for permission. For software which is
copyrighted by the Free Software Foundation, write to the Free
Software Foundation; we sometimes make exceptions for this. Our
decision will be guided by the two goals of preserving the free status
of all derivatives of our free software and of promoting the sharing
and reuse of software generally.
NO WARRANTY
15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
everyone can redistribute and change. You can do so by permitting
redistribution under these terms (or, alternatively, under the terms of the
ordinary General Public License).
To apply these terms, attach the following notices to the library. It is
safest to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least the
"copyright" line and a pointer to where the full notice is found.
<one line to give the library's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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 2.1 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
Also add information on how to contact you by electronic and paper mail.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the library, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
<signature of Ty Coon>, 1 April 1990
Ty Coon, President of Vice
That's all there is to it!

View File

@@ -0,0 +1,427 @@
#include "zview.h"
boolean CDECL reader_init( const char *name, IMGINFO info);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
void CDECL reader_quit( IMGINFO info);
void CDECL init( void);
PROC DEGASFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit}
};
LDGLIB degas_plugin =
{
0x0200, /* Plugin version */
5, /* Number of plugin's functions */
DEGASFunc, /* List of functions */
"PI1PI2PI3PC1PC2PC3", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
6L /* Howmany file type are supported by this plugin */
};
typedef struct
{
uint16 compression : 1;
uint16 reserved0 : 13;
uint16 resolution : 2;
uint16 palette[16];
} DEGASHDR;
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
int16 handle;
int32 position, file_size;
DEGASHDR *degas;
if ( ( handle = ( int16)Fopen( name, 0)) < 0)
return FALSE;
file_size = Fseek( 0L, handle, 2);
if( file_size > 33000L)
{
Fclose( handle);
return FALSE;
}
Fseek( 0L, handle, 0);
degas = ( DEGASHDR *)malloc( file_size);
if ( degas == NULL)
{
Fclose( handle);
return FALSE;
}
if ( Fread( handle, file_size, degas) != file_size)
{
free( degas);
Fclose( handle);
return FALSE;
}
Fclose( handle);
info->planes = 1 << ( 2 - degas->resolution);
switch( info->planes)
{
case 4:
info->width = 320;
info->height = 200;
info->components = 3;
info->indexed_color = TRUE;
info->colors = 16;
break;
case 2:
info->width = 640;
info->height = 200;
info->components = 3;
info->indexed_color = TRUE;
info->colors = 4;
break;
case 1:
info->width = 640;
info->height = 400;
info->components = 1;
info->indexed_color = FALSE;
info->colors = 2;
break;
default:
free( degas);
return FALSE;
}
position = sizeof( DEGASHDR);
info->real_width = info->width;
info->real_height = info->height;
info->memory_alloc = TT_RAM;
info->page = 1;
info->delay = 0;
info->orientation = UP_TO_DOWN;
info->num_comments = 0;
info->max_comments_length = 0;
info->_priv_ptr = ( void*)degas;
info->_priv_var_more = position;
strcpy( info->info, "Degas");
if( degas->compression)
{
uint8 *compress_buffer = malloc( 320L);
if( compress_buffer == NULL)
{
free( degas);
return FALSE;
}
info->_priv_ptr_more = ( void*)compress_buffer;
strcpy( info->compression, "Yes");
}
else
{
strcpy( info->compression, "None");
info->_priv_ptr_more = NULL;
}
if( info->indexed_color)
{
register int16 i;
for ( i = 0; i < info->colors; i++)
{
info->palette[i].red = ((( degas->palette[i] >> 7) & 0xE) + (( degas->palette[i] >> 11) & 0x1)) * 0x11;
info->palette[i].green = ((( degas->palette[i] >> 3) & 0xE) + (( degas->palette[i] >> 7) & 0x1)) * 0x11;
info->palette[i].blue = ((( degas->palette[i] << 1) & 0xE) + (( degas->palette[i] >> 3) & 0x1)) * 0x11;
}
}
return TRUE;
}
static int16 read_line( int16 bpl, uint8 *src, uint8 *compress_buffer)
{
int16 x, n, c;
int16 count = 0;
/* decompress the line */
for( x = 0; x < bpl;)
{
n = src[count++];
if( n <= 127) /* (n+1) literal bytes */
{
n++;
if( x + n > bpl)
return -1;
do
{
compress_buffer[x++] = src[count++];
}while ( --n > 0);
}
else /* next byte is repeated (257-n) times */
{
n = 257 - n;
if( x + n > bpl)
return -1;
c = src[count++];
do {
compress_buffer[x++] = c;
} while (--n > 0);
}
}
return count;
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
DEGASHDR *degas = ( DEGASHDR*)info->_priv_ptr;
uint8 *l, *s = ( uint8*)degas + info->_priv_var_more;
uint8 *compress_buffer = ( uint8*)info->_priv_ptr_more;
uint16 x, c, p0, p1, p2, p3;
int16 count;
if( degas->compression)
{
count = read_line(( info->width * info->planes) >> 3, s, compress_buffer);
if( count == -1)
return FALSE;
info->_priv_var_more += count;
switch( info->planes)
{
case 4:
for( x = 0, l = compress_buffer; x < info->width; l += 2)
{
p0 = (l[ 0] << 8) | l[ 1];
p1 = (l[ 40] << 8) | l[ 41];
p2 = (l[ 80] << 8) | l[ 81];
p3 = (l[120] << 8) | l[121];
for ( c = 0; c < 16; c++)
{
buffer[x++] = ((p0 >> 15) & 1) | ((p1 >> 14) & 2) | ((p2 >> 13) & 4) | ((p3 >> 12) & 8);
p0 <<= 1;
p1 <<= 1;
p2 <<= 1;
p3 <<= 1;
}
}
break;
case 2:
for ( x = 0, l = compress_buffer; x < info->width; l += 2)
{
p0 = (l[0] << 8) | l[1];
p1 = (l[80] << 8) | l[81];
for (c = 0; c < 16; c++)
{
buffer[x++] = ((p0 >> 15) & 1) | ((p1 >> 14) & 2);
p0 <<= 1;
p1 <<= 1;
}
}
break;
case 1:
for (x = 0, l = compress_buffer; x < info->width; l += 2)
{
p0 = ( l[0] << 8) | l[1];
for ( c = 0; c < 16; c++)
{
buffer[x++] = ((p0 >> 15) & 1);
p0 <<= 1;
}
}
break;
}
return TRUE;
}
switch( info->planes)
{
case 4:
for( x = 0, l = s; x < info->width; l += 8)
{
p0 = ( l[0] << 8) | l[1];
p1 = ( l[2] << 8) | l[3];
p2 = ( l[4] << 8) | l[5];
p3 = ( l[6] << 8) | l[7];
for ( c = 0; c < 16; c++)
{
buffer[x++] = ((p0 >> 15) & 1) | ((p1 >> 14) & 2) | ((p2 >> 13) & 4) | ((p3 >> 12) & 8);
p0 <<= 1;
p1 <<= 1;
p2 <<= 1;
p3 <<= 1;
}
}
info->_priv_var_more += 160;
break;
case 2:
for ( x = 0, l = s; x < info->width; l += 4)
{
p0 = (l[0] << 8) | l[1];
p1 = (l[2] << 8) | l[3];
for (c = 0; c < 16; c++)
{
buffer[x++] = ((p0 >> 15) & 1) | ((p1 >> 14) & 2);
p0 <<= 1;
p1 <<= 1;
}
}
info->_priv_var_more += 160;
break;
case 1:
for (x = 0, l = s; x < info->width; l += 2)
{
p0 = ( l[0] << 8) | l[1];
for ( c = 0; c < 16; c++)
{
buffer[x++] = ((p0 >> 15) & 1);
p0 <<= 1;
}
}
info->_priv_var_more += 80;
break;
}
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function must be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
return;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
DEGASHDR *degas = ( DEGASHDR*)info->_priv_ptr;
uint8 *compress_buffer = ( uint8*)info->_priv_ptr_more;
free( degas);
if( compress_buffer)
free( compress_buffer);
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &degas_plugin);
return( 0);
}

View File

@@ -0,0 +1,13 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer -finline-functions
CPU = -m68020-60
LIB = -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) rawldg.o
PROGRAM = eureka.ldg
include ../../../common.mak

View File

@@ -0,0 +1,770 @@
int16 red[]={ 996,0
,992
,0
,0
,0
,992
,992
,792
,490
,490
,0
,0
,0
,490
,490
,996
,988
,980
,973
,965
,957
,949
,941
,933
,925
,918
,910
,902
,890
,882
,875
,867
,859
,851
,843
,835
,827
,820
,812
,804
,796
,788
,780
,773
,765
,757
,749
,741
,733
,725
,718
,710
,702
,690
,682
,675
,667
,659
,651
,643
,635
,627
,620
,612
,604
,596
,588
,580
,573
,565
,557
,549
,541
,533
,525
,518
,510
,502
,490
,482
,475
,467
,459
,451
,443
,435
,427
,420
,412
,404
,396
,388
,380
,373
,365
,357
,365
,373
,380
,388
,396
,404
,412
,420
,427
,435
,443
,451
,459
,467
,475
,482
,490
,502
,510
,518
,525
,533
,541
,549
,557
,565
,573
,580
,588
,596
,604
,612
,620
,627
,635
,643
,651
,659
,667
,675
,682
,690
,702
,710
,718
,725
,733
,741
,749
,757
,765
,773
,780
,788
,796
,804
,812
,820
,827
,835
,843
,851
,859
,867
,875
,882
,890
,902
,910
,918
,925
,933
,941
,949
,957
,965
,973
,980
,988
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
};
int16 green[]={996,0
,0
,992
,0
,992
,992
,0
,792
,490
,0
,490
,0
,490
,490
,0
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,996
,988
,980
,973
,965
,957
,949
,941
,933
,925
,918
,910
,902
,890
,882
,875
,867
,859
,851
,843
,835
,827
,820
,812
,804
,796
,788
,780
,773
,765
,757
,749
,741
,733
,725
,718
,710
,702
,690
,682
,675
,667
,659
,651
,643
,635
,627
,620
,612
,604
,596
,588
,580
,573
,565
,557
,549
,541
,533
,525
,518
,510
,502
,490
,482
,475
,467
,459
,451
,443
,435
,427
,420
,412
,404
,396
,388
,380
,373
,365
,357
,365
,373
,380
,388
,396
,404
,412
,420
,427
,435
,443
,451
,459
,467
,475
,482
,490
,502
,510
,518
,525
,533
,541
,549
,557
,565
,573
,580
,588
,596
,604
,612
,620
,627
,635
,643
,651
,659
,667
,675
,682
,690
,702
,710
,718
,725
,733
,741
,749
,757
,765
,773
,780
,788
,796
,804
,812
,820
,827
,835
,843
,851
,859
,867
,875
,882
,890
,902
,910
,918
,925
,933
,941
,949
,957
,965
,973
,980
,988
};
int16 blue[]={996,0
,0
,0
,992
,992
,0
,992
,792
,490
,0
,0
,490
,490
,0
,490
,306
,314
,322
,329
,337
,345
,353
,361
,369
,376
,384
,392
,404
,412
,420
,427
,435
,443
,451
,459
,467
,475
,482
,490
,498
,506
,514
,522
,529
,537
,545
,553
,561
,569
,576
,584
,592
,604
,612
,620
,627
,635
,643
,651
,659
,667
,675
,682
,690
,698
,706
,714
,722
,729
,737
,745
,753
,761
,769
,776
,784
,792
,804
,812
,820
,827
,835
,843
,851
,859
,867
,875
,882
,890
,898
,906
,914
,922
,929
,937
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,945
,937
,929
,922
,914
,906
,898
,890
,882
,875
,867
,859
,851
,843
,835
,827
,820
,812
,804
,792
,784
,776
,769
,761
,753
,745
,737
,729
,722
,714
,706
,698
,690
,682
,675
,667
,659
,651
,643
,635
,627
,620
,612
,604
,592
,584
,576
,569
,561
,553
,545
,537
,529
,522
,514
,506
,498
,490
,482
,475
,467
,459
,451
,443
,435
,427
,420
,412
,404
,392
,384
,376
,369
,361
,353
,345
,337
,329
,322
,314
};

View File

@@ -0,0 +1,503 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
free software--to make sure the software is free for all its users.
This license, the Lesser General Public License, applies to some
specially designated software packages--typically libraries--of the
Free Software Foundation and other authors who decide to use it. You
can use it too, but we suggest you first think carefully about whether
this license or the ordinary General Public License is the better
strategy to use in any particular case, based on the explanations below.
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That's all there is to it!

View File

@@ -0,0 +1,255 @@
#include "zview.h"
#include "colormap.h"
boolean CDECL reader_init( const char *name, IMGINFO info);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
void CDECL reader_quit( IMGINFO info);
void CDECL init( void);
PROC RAWFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit}
};
LDGLIB raw_plugin =
{
0x0200, /* Plugin version */
5, /* Number of plugin's functions */
RAWFunc, /* List of functions */
"RAW", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
1L /* Howmany file type are supported by this plugin */
};
void swap( uint8 *a, uint8 *b)
{
uint8 temp;
temp = *a;
*a = *b;
*b = temp;
}
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
int16 handle;
int32 file_size, palette[768];
uint8 header[4], *img_buffer;
if ( ( handle = ( int16)Fopen( name, 0)) < 0)
return FALSE;
file_size = Fseek( 0L, handle, 2) - 4L;
Fseek( 0L, handle, 0);
if ( Fread( handle, 4, header) != 4)
{
Fclose( handle);
return FALSE;
}
info->planes = 8;
info->width = *((uint16*)&header[0]);
info->height = *((uint16*)&header[2]);
info->colors = 256;
info->components = 3;
info->real_width = info->width;
info->real_height = info->height;
info->memory_alloc = TT_RAM;
info->page = 1;
info->delay = 0;
info->orientation = UP_TO_DOWN;
info->num_comments = 0;
info->max_comments_length = 0;
info->_priv_var = ( uint32)handle;
if( ( info->width * info->height) == file_size)
{
info->indexed_color = FALSE;
}
else
{
/* 3072 is the palette's size */
file_size -= 3072;
if( ( info->width * info->height) != file_size)
{
Fclose( handle);
return FALSE;
}
info->indexed_color = TRUE;
}
strcpy( info->info, "Eureka RAW Picture");
strcpy( info->compression, "None");
if( info->indexed_color == TRUE)
{
register int16 i;
Fread( handle, 3072, palette);
for ( i = 0; i < info->colors; i++)
{
info->palette[i].red = ( uint8)(( palette[i] >> 24) & 0xffL);
info->palette[i].green = ( uint8)(( palette[i] >> 16) & 0xffL);
info->palette[i].blue = ( uint8)(( palette[i] >> 8 ) & 0xffL);
}
}
else
{
register int16 i;
info->indexed_color = TRUE;
for ( i = 0; i < info->colors; i++)
{
info->palette[i].red = ( uint8)((( uint32)red[i] * 255L) / 1000L);
info->palette[i].green = ( uint8)((( uint32)red[i] * 255L) / 1000L);
info->palette[i].blue = ( uint8)((( uint32)red[i] * 255L) / 1000L);
}
}
img_buffer = ( uint8*)malloc( file_size);
info->_priv_ptr = ( void*)img_buffer;
info->_priv_ptr_more = ( void*)img_buffer;
if( img_buffer == NULL)
{
Fclose( handle);
return FALSE;
}
if( Fread( handle, file_size, img_buffer) != file_size)
{
free( img_buffer);
Fclose( handle);
return FALSE;
}
else
{
register uint16 i, j, w = info->width >> 1;
for( i = 0; i < info->height; i++)
for( j = 0; j < w; j++)
swap( &img_buffer[(uint32)info->width * (uint32)i + (uint32)j], &img_buffer[(uint32)info->width * (uint32)i + (uint32)info->width - 1L - (uint32)j]);
}
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
memcpy( buffer, ( uint8*)info->_priv_ptr_more, info->width);
info->_priv_ptr_more = ( uint8*)info->_priv_ptr_more + info->width;
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function must be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
return;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
free( ( uint8*)info->_priv_ptr);
Fclose( ( int16)info->_priv_var);
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &raw_plugin);
return( 0);
}

View File

@@ -0,0 +1,13 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer
CPU = -m68020-60
LIB = -lgif -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) gifldg.o
PROGRAM = gif.ldg
include ../../../common.mak

View File

@@ -0,0 +1,503 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
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That's all there is to it!

View File

@@ -0,0 +1,498 @@
#include <gif_lib.h>
#include "zview.h"
/* Prototypes */
boolean CDECL reader_init( const char *name, IMGINFO info);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
uint8* CDECL reader_get_page_addr( IMGINFO info);
void CDECL reader_quit( IMGINFO info);
void CDECL init( void);
PROC GIFFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit}
};
LDGLIB gif_plugin =
{
0x0200, /* Plugin version */
5, /* Number of plugin's functions */
GIFFunc, /* List of functions */
"GIF", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
1L /* Howmany file type are supported by this plugin */
};
/*==================================================================================*
* void decodecolormap: *
* Convert 8 bits + palette data to standard RGB *
*----------------------------------------------------------------------------------*
* input: *
* src -> The 8 bits source. *
* dst -> The destination where put the RGB data. *
* cm -> The source's colormap. *
* width -> picture's width. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
static inline void decodecolormap( uint8 *src, uint8 *dst, GifColorType *cm, uint16 width, int16 trans_index, uint32 transparent_color, int16 draw_trans)
{
GifColorType *cmentry;
register uint16 i;
for( i = 0; i < width; i++)
{
if( src[i] == trans_index)
{
if( draw_trans == FALSE)
{
dst += 3;
continue;
}
*(dst++) = ( ( transparent_color >> 16) & 0xFF);
*(dst++) = ( ( transparent_color >> 8) & 0xFF);
*(dst++) = ( ( transparent_color) & 0xFF);
}
else
{
cmentry = &cm[src[i]];
*(dst++) = cmentry->Red;
*(dst++) = cmentry->Green;
*(dst++) = cmentry->Blue;
}
}
}
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
static int16 InterlacedOffset[] = { 0, 4, 2, 1 }, InterlacedJumps[] = { 8, 8, 4, 2 };
int16 i, j, error = 0, transpar = -1, interlace = FALSE, draw_trans = TRUE;
uint16 delaycount = 0;
GifFileType *gif = NULL;
GifRecordType rec;
txt_data comment = { 0,};
img_data img = { 0,};
if ( ( gif = DGifOpenFileName ( name)) == NULL)
return FALSE;
img.imagecount = 0;
do
{
if( DGifGetRecordType (gif, &rec) == GIF_ERROR)
{
error = 1;
break;
}
if ( rec == IMAGE_DESC_RECORD_TYPE)
{
if ( DGifGetImageDesc( gif) == GIF_ERROR)
{
error = 1;
break;
}
else
{
GifImageDesc *dsc = &gif->Image;
ColorMapObject *map = ( dsc->ColorMap ? dsc->ColorMap : gif->SColorMap);
int Row, Col, Width, Height;
int32 line_size;
uint8 *line_buffer = NULL, *img_buffer;
if( map == NULL)
{
error = 1;
break;
}
Row = dsc->Top; /* Image Position relative to Screen. */
Col = dsc->Left;
Width = dsc->Width;
Height = dsc->Height;
/* if ( Col + Width > gif->SWidth || Row + Height > gif->SWidth)
{
error = 1;
break;
}
*/
info->components = ( map->BitsPerPixel == 1 ? 1 : 3);
info->planes = map->BitsPerPixel;
info->colors = map->ColorCount;
info->width = ( uint16)gif->SWidth;
info->height = ( uint16)gif->SHeight;
line_size = ( int32)gif->SWidth * ( int32)info->components;
if( dsc->Interlace)
interlace = TRUE;
img.image_buf[img.imagecount] = ( uint8*)malloc( line_size * ( gif->SHeight + 2));
img_buffer = img.image_buf[img.imagecount];
if( img_buffer == NULL)
{
error = 1;
break;
}
if( map->BitsPerPixel != 1)
{
line_buffer = ( uint8*)malloc( line_size + 128);
if( line_buffer == NULL)
{
free( ( void*)img.image_buf[img.imagecount]);
error = 1;
break;
}
}
if( img.imagecount > 0)
{
/* the transparency is the background picture */
draw_trans = FALSE;
if(( Row > 0 && Height < gif->SHeight) || ( Col > 0 && Width < gif->SWidth))
memcpy( img_buffer, img.image_buf[img.imagecount - 1], line_size * gif->SHeight);
else draw_trans = TRUE;
}
if( interlace == TRUE)
{
for( i = 0; i < 4; i++)
{
for ( j = Row + InterlacedOffset[i]; j < Row + Height; j += InterlacedJumps[i])
{
if( map->BitsPerPixel != 1)
{
if( DGifGetLine ( gif, line_buffer, Width) != GIF_OK)
{
error = 1;
free( ( void*)img.image_buf[img.imagecount]);
break;
}
decodecolormap( line_buffer, &img_buffer[(j * line_size) + (Col * 3)], map->Colors, Width, transpar, info->background_color, draw_trans);
}
else if( DGifGetLine ( gif, &img_buffer[(j * line_size) + Col], Width) != GIF_OK)
{
free( ( void*)img.image_buf[img.imagecount]);
error = 1;
break;
}
}
}
}
else
{
for( i = 0; i < Height; i++, Row++)
{
if( map->BitsPerPixel != 1)
{
if( DGifGetLine( gif, line_buffer, Width) != GIF_OK)
{
error = 1;
free( ( void*)img.image_buf[img.imagecount]);
break;
}
decodecolormap( line_buffer, &img_buffer[(Row * line_size) + (Col * 3)], map->Colors, Width, transpar, info->background_color, draw_trans);
}
else if( DGifGetLine( gif, &img_buffer[(Row * line_size) + Col], Width) != GIF_OK)
{
free( ( void*)img.image_buf[img.imagecount]);
error = 1;
break;
}
}
}
if( line_buffer)
{
free( ( void*)line_buffer);
line_buffer = NULL;
}
img.imagecount++;
}
if( info->thumbnail == TRUE)
break;
}
else if ( rec == EXTENSION_RECORD_TYPE)
{
int code;
GifByteType * block;
if ( DGifGetExtension (gif, &code, &block) == GIF_ERROR)
{
error = 1;
break;
}
else while ( block != NULL)
{
switch( code)
{
case COMMENT_EXT_FUNC_CODE:
if( comment.lines > 254)
break;
block[block[0]+1] = '\000'; /* Convert gif's pascal-like string */
comment.txt[comment.lines] = ( int8*)malloc( block[0] + 1);
if( comment.txt[comment.lines] == NULL)
break;
strcpy( comment.txt[comment.lines], (char*)block + 1);
comment.max_lines_length = MAX( comment.max_lines_length, ( int16)strlen( comment.txt[comment.lines]) + 1);
comment.lines++;
break;
case GRAPHICS_EXT_FUNC_CODE:
if( block[1] & 1)
transpar = ( uint16)block[4];
else
transpar = -1;
img.delay[delaycount++] = ( block[2] + (block[3] << 8)) << 1;
break;
/*
In version 2.0 beta Netscape, introduce a special extention for
set a maximum loop playback.. Netscape itself doesn't use it anymore
and play the animation infinitly... so we don't care about it.
case APPLICATION_EXT_FUNC_CODE:
if( reading_netscape_ext == 0)
{
if( memcmp( block + 1, "NETSCAPE", 8) != 0)
break;
if( block[0] != 11)
break;
if( memcmp( block + 9, "2.0", 3) != 0)
break;
reading_netscape_ext = 1;
}
else
{
if (( block[1] & 7) == 1)
info->max_loop_count = block[2] | ( block[3] << 8);
}
*/
default:
break;
}
if ( DGifGetExtensionNext (gif, &block) == GIF_ERROR)
{
error = 1;
break;
}
}
}
else break;
} while ( rec != TERMINATE_RECORD_TYPE);
if( error)
{
for ( i = 0; i < comment.lines; i++)
{
if( comment.txt[i])
free( ( void*)comment.txt[i]);
}
for ( i = 0; i < img.imagecount; i++)
{
if( img.image_buf[i])
free( ( void*)img.image_buf[i]);
}
DGifCloseFile ( gif);
return FALSE;
}
info->real_height = info->height;
info->real_width = info->width;
info->orientation = UP_TO_DOWN;
info->page = img.imagecount;
info->num_comments = comment.lines;
info->max_comments_length = comment.max_lines_length;
info->indexed_color = FALSE;
info->memory_alloc = TT_RAM;
info->_priv_var = 0L; /* page line counter */
info->_priv_var_more = 0L; /* current page returned */
info->_priv_ptr = ( void*)&comment;
info->_priv_ptr_more = ( void*)&img;
strcpy( info->info, "GIF");
/*if( gif->Version)
strcat( info->info, "89a");
else
strcat( info->info, "87a");
*/
if( interlace)
strcat( info->info, " (Interlaced)");
strcpy( info->compression, "LZW");
DGifCloseFile( gif);
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function mus be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
register int16 i;
txt_data *comment = ( txt_data *)info->_priv_ptr;
for ( i = 0; i < txtdata->lines; i++)
strcpy( txtdata->txt[i] , comment->txt[i]);
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
img_data *img = ( img_data*)info->_priv_ptr_more;
int32 line_size = ( int32)info->width * ( int32)info->components;
uint8 *line_src;
if( ( int32)info->page_wanted != info->_priv_var_more)
{
info->_priv_var_more = ( int32)info->page_wanted;
info->_priv_var = 0L;
}
line_src = &img->image_buf[info->page_wanted][info->_priv_var];
info->_priv_var += line_size;
info->delay = img->delay[info->page_wanted];
memcpy( buffer, line_src, line_size);
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
txt_data *comment = ( txt_data *)info->_priv_ptr;
img_data *img = ( img_data *)info->_priv_ptr_more;
register int16 i;
for ( i = 0; i < comment->lines; i++)
{
if( comment->txt[i])
free( ( void*)comment->txt[i]);
}
for ( i = 0; i < img->imagecount; i++)
{
if( img->image_buf[i])
free( ( void*)img->image_buf[i]);
}
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &gif_plugin);
return( 0);
}

View File

@@ -0,0 +1,13 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer -finline-functions
CPU = -m68020-60
LIB = -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) godldg.o
PROGRAM = godpaint.ldg
include ../../../common.mak

View File

@@ -0,0 +1,503 @@
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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
Also add information on how to contact you by electronic and paper mail.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the library, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
<signature of Ty Coon>, 1 April 1990
Ty Coon, President of Vice
That's all there is to it!

View File

@@ -0,0 +1,331 @@
#include "zview.h"
boolean CDECL reader_init( const char *name, IMGINFO info);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
void CDECL reader_quit( IMGINFO info);
boolean CDECL encoder_init( const char *name, IMGINFO info);
boolean CDECL encoder_write( IMGINFO info, uint8 *buffer);
void CDECL encoder_quit( IMGINFO info);
void CDECL init( void);
PROC DEGASFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit},
{ "encoder_init", "", encoder_init},
{ "encoder_write", "", encoder_write},
{ "encoder_quit", "", encoder_quit}
};
LDGLIB godpaint_plugin =
{
0x0200, /* Plugin version */
8, /* Number of plugin's functions */
DEGASFunc, /* List of functions */
"GOD", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
1L /* Howmany file type are supported by this plugin */
};
typedef struct
{
int16 header;
int16 width;
int16 height;
} GODHDR;
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
int16 handle;
int32 file_size;
GODHDR *god;
if ( ( handle = ( int16)Fopen( name, 0)) < 0)
return FALSE;
file_size = Fseek( 0L, handle, 2);
Fseek( 0L, handle, 0);
god = ( GODHDR *)malloc( file_size);
if ( god == NULL)
{
Fclose( handle);
return FALSE;
}
if ( Fread( handle, file_size, god) != file_size)
{
free( god);
Fclose( handle);
return FALSE;
}
Fclose( handle);
if( ( god->header != 1024) /* some beta version of godpaint? I don't know but some files have this header */
&& ( god->header != 18228 /* G4 */))
{
free( god);
return FALSE;
}
info->planes = 16;
info->real_width = info->width = god->width;
info->real_height = info->height= god->height;
info->components = 3;
info->indexed_color = FALSE;
info->colors = 1L << info->planes;
info->memory_alloc = TT_RAM;
info->page = 1;
info->delay = 0;
info->orientation = UP_TO_DOWN;
info->num_comments = 0;
info->max_comments_length = 0;
info->_priv_ptr = ( void*)god;
info->_priv_var_more = 3;
info->_priv_ptr_more = NULL;
strcpy( info->info, "Reservoir Gods - Godpaint");
strcpy( info->compression, "None");
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
GODHDR *god = ( GODHDR*)info->_priv_ptr;
uint16 *source = ( uint16*)god + info->_priv_var_more;
int16 i, ii;
for( i = 0, ii = 0; i < info->width; i++)
{
register uint16 src16 = source[i];
buffer[ii++] = (( src16 >> 11) & 0x001F) << 3;
buffer[ii++] = (( src16 >> 5) & 0x003F) << 2;
buffer[ii++] = (( src16) & 0x001F) << 3;
}
info->_priv_var_more += info->width;
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function must be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
return;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
GODHDR *god = ( GODHDR*)info->_priv_ptr;
free( god);
}
/*==================================================================================*
* boolean CDECL encoder_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the encoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL encoder_init( const char *name, IMGINFO info)
{
uint16 *line_buffer = NULL;
int8 header_id[2] = "G4";
int32 file;
if ( ( file = Fcreate( name, 0)) < 0)
return FALSE;
line_buffer = ( uint16*) malloc( ( info->width + 1) << 1);
if ( line_buffer == NULL)
{
Fclose( file);
return FALSE;
}
/* we test only the first Fwrite.. if it's ok, the others *should* works also */
if( Fwrite( file, 2, header_id) != 2)
{
free( line_buffer);
Fclose( file);
return FALSE;
}
Fwrite( file, 2, ( void*)&info->width);
Fwrite( file, 2, ( void*)&info->height);
info->planes = 24; /* the wanted input data format.. currently Zview return only 24 bits data, so we make the convertion to 16 bits ourself */
info->components = 3;
info->colors = 16777215L;
info->orientation = UP_TO_DOWN;
info->indexed_color = FALSE;
info->page = 1;
info->delay = 0;
info->_priv_ptr = line_buffer;
info->_priv_var = file;
info->_priv_ptr_more = NULL;
info->__priv_ptr_more = NULL;
return TRUE;
}
/*==================================================================================*
* boolean CDECLencoder_write: *
* This function write data from buffer to file *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The source buffer. *
* info -> The IMGINFO struct . *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL encoder_write( IMGINFO info, uint8 *buffer)
{
uint16 *source = ( uint16*)info->_priv_ptr;
int32 byte_to_write = info->width << 1;
uint16 ii, i;
for( ii = i = 0; i < info->width; i++, ii += 3)
{
register uint8 *rgb = &buffer[ii];
source[i] = (((uint16)rgb[0] & 0xF8) << 8) | (((uint16)rgb[1] & 0xFC) << 3) | ( rgb[2] >> 3);
}
if( Fwrite( info->_priv_var, byte_to_write, ( uint8*)source) != byte_to_write)
return FALSE;
return TRUE;
}
/*==================================================================================*
* boolean CDECL encoder_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL encoder_quit( IMGINFO info)
{
uint8 *buffer = ( uint8*)info->_priv_ptr;
free( buffer);
Fclose( info->_priv_var);
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
/* Make the compiler happy*/
return;
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &godpaint_plugin);
return( 0);
}

View File

@@ -0,0 +1,13 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer -finline-functions
CPU = -m68020-60
LIB = -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) imgldg.o xp32.o
PROGRAM = img.ldg
include ../../../common.mak

View File

@@ -0,0 +1,503 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
The licenses for most software are designed to take away your
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14. If you wish to incorporate parts of the Library into other free
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
everyone can redistribute and change. You can do so by permitting
redistribution under these terms (or, alternatively, under the terms of the
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To apply these terms, attach the following notices to the library. It is
safest to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least the
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<one line to give the library's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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 2.1 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
Also add information on how to contact you by electronic and paper mail.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the library, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
<signature of Ty Coon>, 1 April 1990
Ty Coon, President of Vice
That's all there is to it!

View File

@@ -0,0 +1,59 @@
/*------------------------------------------*/
/* IMG Structur */
/*------------------------------------------*/
#ifndef __IMG_IMAGE__
#define __IMG_IMAGE__
#define XIMG 0x58494D47
typedef struct
{
int16 version;
int16 length;
int16 planes;
int16 pattern_length;
int16 pix_width;
int16 pix_height;
int16 w;
int16 h;
} IMGHDR;
#endif
typedef struct
{
uint8 *img_buf;
int32 img_buf_len;
int32 img_buf_offset;
int32 img_buf_used;
uint8 *line_buffer;
int16 pat_len;
int16 line_len;
int32 rest_length;
int32 file_length;
int16 img_buf_valid;
} XIMG_DATA;
#ifndef __PIC_STRUCT__
#define __PIC_STRUCT__
typedef struct
{
uint8 red, green, blue;
}RGB;
typedef struct _picture
{
int16 file_handle;
int16 width;
int16 height;
int16 planes;
IMGHDR img;
XIMG_DATA info;
} IMG_REF;
#endif

View File

@@ -0,0 +1,365 @@
#include "zview.h"
#include "img.h"
extern int32 plane2packed24( int32 no_words, int32 plane_length, int16 no_planes, void *src, void *dst, COLOR_MAP *palette);
boolean CDECL reader_init( const char *name, IMGINFO info);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_quit( IMGINFO info);
void CDECL init( void);
PROC IMGFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit}
};
LDGLIB img_plugin =
{
0x0200, /* Plugin version */
5, /* Number of plugin's functions */
IMGFunc, /* List of functions */
"IMG", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
1L /* Howmany file type are supported by this plugin */
};
boolean CDECL reader_init( const char *name, IMGINFO info)
{
IMG_REF *pic = NULL;
IMGHDR *head = NULL;
XIMG_DATA *imginfo = NULL;
int16 handle, line_width;
int8 identify[6];
if ( ( handle = ( int16) Fopen( name, 0)) < 0)
return FALSE;
pic = ( IMG_REF*)malloc( sizeof( IMG_REF));
head = &pic->img;
imginfo = &pic->info;
if( pic == NULL)
{
Fclose( handle);
return FALSE;
}
if ( Fread( handle, sizeof( IMGHDR), head) != sizeof( IMGHDR))
{
free( pic);
return FALSE;
}
if (( head->planes != 1) && ( head->planes != 4) && ( head->planes != 8) && ( head->planes != 24))
{
free( pic);
Fclose( handle);
return FALSE;
}
pic->file_handle = handle;
pic->width = head->w;
pic->height = head->h;
pic->planes = head->planes;
line_width = ((( head->w + 15) & 0xfff0) >> 3 ) * head->planes;
imginfo->pat_len = head->pattern_length;
imginfo->line_len = ( head->w + 7) >> 3;
imginfo->file_length = Fseek( 0L, handle, 2);
imginfo->img_buf_len = MAX( 8192, line_width << 1);
imginfo->img_buf = ( uint8*)malloc( imginfo->img_buf_len + 256L);
if ( imginfo->img_buf == NULL)
{
free( pic);
Fclose( handle);
return FALSE;
}
/* Normally, here, it's the size of the line that we allocate but we prevent buffer
Overflow with some picture saved with french application */
imginfo->line_buffer = ( uint8*)malloc( imginfo->img_buf_len + 256L);
imginfo->img_buf_valid = 0;
if ( imginfo->line_buffer == NULL)
{
free( imginfo->img_buf);
free( pic);
Fclose( handle);
return FALSE;
}
info->real_width = info->width = pic->width;
info->real_height = info->height= pic->height;
info->components = ( pic->planes == 1 ? 1 : 3);
info->planes = pic->planes;
info->orientation = UP_TO_DOWN;
info->colors = 1L << ( uint32)pic->planes;
info->indexed_color = FALSE; /* ( (( pic->planes == 1) || ( pic->planes > 8)) ? 0 : 1); */
info->memory_alloc = TT_RAM;
info->page = 1;
info->delay = 0;
info->num_comments = 0;
info->_priv_ptr = ( void*)pic;
strcpy( info->info, "GEM Bitmap ");
strcpy( info->compression, "RLE");
/* It a extended IMG ?, if not, return */
if(( head->length <= ( sizeof( IMGHDR) >> 1)) || ( info->planes > 8))
return TRUE;
strcat( info->info, "( eXtended)");
Fseek( sizeof( IMGHDR), handle, 0);
Fread( handle, 6, identify);
if( strcmp ( identify, "XIMG") != 0)
{
free( imginfo->line_buffer);
free( imginfo->img_buf);
free( pic);
Fclose( handle);
return FALSE;
}
else
{
RGB1000 palette[256];
register int32 pal_len;
register int16 i;
pal_len = MIN ((( head->length << 1) - 6 - sizeof( IMGHDR)), ( sizeof( RGB1000) << 8));
Fread( handle, pal_len, palette);
for ( i = 0; i < info->colors; i++)
{
register int32 intensity = ( int32)palette[i].blue;
info->palette[i].blue = ( uint8) (((( intensity << 8) - intensity) + 500) / 1000L);
intensity = ( int32)palette[i].green;
info->palette[i].green = ( uint8) (((( intensity << 8) - intensity) + 500) / 1000L);
intensity = ( int32)palette[i].red;
info->palette[i].red = ( uint8) (((( intensity << 8) - intensity) + 500) / 1000L);
}
}
return TRUE;
}
void fill_img_buf( IMG_REF *pic)
{
XIMG_DATA *info = &pic->info;
int32 read = info->img_buf_len;
if ( read > info->rest_length)
read = info->rest_length;
info->img_buf_offset = 0;
info->img_buf_used = Fread( pic->file_handle, read, info->img_buf );
info->rest_length -= info->img_buf_used;
}
void refill_img_buf( IMG_REF *pic, int32 read)
{
XIMG_DATA *info = &pic->info;
info->img_buf_used -= read;
info->img_buf_offset += read;
if ( info->img_buf_offset >= ( info->img_buf_len >> 1))
{
if ( info->img_buf_used > 0)
memcpy( info->img_buf, info->img_buf + info->img_buf_offset, info->img_buf_used);
read = info->img_buf_offset;
if ( read > info->rest_length )
read = info->rest_length;
read = Fread( pic->file_handle, read, info->img_buf + info->img_buf_used );
info->img_buf_used += read;
info->img_buf_offset = 0;
info->rest_length -= read;
}
}
uint8 *unpack_line2( uint8 *img, uint8 *des, int16 pat_len, int16 len)
{
register int16 i, cnt;
while ( len > 0)
{
register uint8 tag = *img++;
if ( tag == 0)
{
cnt = *img++;
for ( i = 0; i < cnt; i++)
{
register int16 j;
for ( j = 0; j < pat_len; j++)
*des++ = img[j];
}
img += pat_len;
cnt *= pat_len;
}
else if ( tag == 0x80 )
{
cnt = *img++;
for ( i = 0; i < cnt; i++)
*des++ = *img++;
}
else if (( tag & 0x80 ) == 0)
{
cnt = tag & 0x7f;
for ( i = 0; i < cnt; i++)
*des++ = 0;
}
else
{
cnt = tag & 0x7f;
for ( i = 0; i < cnt; i++)
*des++ = 0xff;
}
len -= cnt;
}
return( img);
}
uint8 *unpack_line1( uint8 *img, uint8 *des, int16 pat_len, int16 len)
{
if (( img[0] == 0 ) && ( img[1] == 0 ) && ( img[2] == 0xff))
{
if ( img[3] > 1)
{
unpack_line2( img + 4, des, pat_len, len);
img[3] -= 1;
return( img);
}
else
return( unpack_line2( img + 4, des, pat_len, len));
}
else
return( unpack_line2( img, des, pat_len, len));
}
void unpack_line( IMG_REF *pic, uint8 *des)
{
XIMG_DATA *info = &pic->info;
uint8 *img_line;
int32 read;
img_line = info->img_buf + info->img_buf_offset;
read = ( int32) ( unpack_line1( img_line, des, info->pat_len, info->line_len * pic->planes ) - img_line );
refill_img_buf( pic, read);
}
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
int16 even_len;
IMG_REF *pic = ( IMG_REF *)info->_priv_ptr;
XIMG_DATA *img_info = &pic->info;
IMGHDR *head = &pic->img;
if ( img_info->img_buf_valid == 0)
{
Fseek( head->length << 1, pic->file_handle, 0);
img_info->rest_length = img_info->file_length - ( head->length << 1);
fill_img_buf( pic);
img_info->img_buf_valid = 1;
}
if( info->planes > 8)
{
unpack_line( pic, buffer);
return TRUE;
}
even_len = ( img_info->line_len + 1) & ~1;
unpack_line( pic, img_info->line_buffer);
if ( img_info->line_len & 1)
{
uint8 *odd, *even;
int16 i;
odd = img_info->line_buffer + ( img_info->line_len * head->planes);
even = odd + head->planes;
for ( i = 0; i < head->planes; i++)
{
*( --even) = 0;
odd -= img_info->line_len;
even -= img_info->line_len;
memcpy( even, odd, img_info->line_len);
}
}
if( !plane2packed24( even_len >> 1, even_len, head->planes, img_info->line_buffer, buffer, info->palette))
return FALSE;
return TRUE;
}
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
return;
}
void CDECL reader_quit( IMGINFO info)
{
IMG_REF *pic = ( IMG_REF *)info->_priv_ptr;
if ( pic)
{
Fclose( pic->file_handle );
free( pic->info.img_buf);
free( pic->info.line_buffer);
free( pic);
}
}
void CDECL init( void)
{
return;
}
int main( void)
{
ldg_init( &img_plugin);
return( 0);
}

View File

@@ -0,0 +1,166 @@
.text
.globl _plane2packed24
| int32 plane2packed24( int32 no_words, int32 plane_length, int16 no_planes, void *src, void *dst, CTAB_REF src_ctab );
| d0 d1 d2 a0 a1 4(sp)
| 11x4 + 4 + 5x4
_plane2packed24:
movem.l d2-d7/a2-a6,-(sp)
move.l 11*4+4(sp),d0
move.l 11*4+8(sp),d1
move.l 11*4+12(sp),d2
movea.l 11*4+16(sp),a0
movea.l 11*4+20(sp),a1
movea.l 11*4+24(sp),a6 |source of the color table
move.l d0,d4
subq.l #1,d4
move.l d1,d6
add.l d6,d6
add.l d6,d6
movea.l a1,a4 |destination's adress to A4
lea (a0,d1.l),a1
lea (a1,d1.l),a2
lea (a2,d1.l),a3
lea not_supported(pc),a5
cmpi.w #8,d2
bhi.s plane2packed24_transform
lea plane2packed24_table(pc),a5
add.w d2,d2
adda.w 0(a5,d2.w),a5
plane2packed24_transform:
jsr (a5)
movem.l (sp)+,d2-d7/a2-a6
rts
plane2packed24_table:
DC.w not_supported-plane2packed24_table
DC.w pp_1_to_8-plane2packed24_table |1 Bit
DC.w not_supported-plane2packed24_table
DC.w not_supported-plane2packed24_table
DC.w pp_4_to_24-plane2packed24_table |4 Bit
DC.w not_supported-plane2packed24_table
DC.w not_supported-plane2packed24_table
DC.w not_supported-plane2packed24_table
DC.w pp_8_to_24-plane2packed24_table |8 Bit
not_supported:
moveq #0,d0
rts
pp_1_to_8:
move.w (a0)+,d0
moveq #15,d5
pp_1_to_8_exp:
moveq #0,d6
add.w d0,d0
addx.l d6,d6
move.b d6,(a4)+
dbra d5,pp_1_to_8_exp
subq.l #1,d4
bpl.b pp_1_to_8
moveq #1,d0
rts
pp_4_to_24: move.w (a0)+,d0
move.w (a1)+,d1
move.w (a2)+,d2
move.w (a3)+,d3
moveq #15,d5
pp_4_to_24_exp: moveq #0,d6
add.w d3,d3
addx.w d6,d6
add.w d2,d2
addx.w d6,d6
add.w d1,d1
addx.w d6,d6
add.w d0,d0
addx.w d6,d6
lsl.w #2,d6
lea (a6,d6.w),a5
move.b (a5),(a4)+ |R
move.b 1(a5),(a4)+ |G
move.b 2(a5),(a4)+ |B
pp_4_to_24_next: dbra d5,pp_4_to_24_exp
subq.l #1,d4
bpl.b pp_4_to_24
moveq #1,d0
rts
pp_8_to_24: move.l d4,-(sp)
move.l d6,-(sp)
move.w (a0)+,d0
move.w (a1)+,d1
move.w (a2)+,d2
move.w (a3)+,d3
move.w -2(a0,d6.l),d4
move.w -2(a1,d6.l),d5
move.w -2(a3,d6.l),d7
move.w -2(a2,d6.l),d6
swap d0
swap d5
move.w #15,d5
pp_8_to_24_exp: swap d5
clr.w d0
add.w d7,d7
addx.w d0,d0
add.w d6,d6
addx.w d0,d0
add.w d5,d5
addx.w d0,d0
add.w d4,d4
addx.w d0,d0
add.w d3,d3
addx.w d0,d0
add.w d2,d2
addx.w d0,d0
add.w d1,d1
addx.w d0,d0
swap d0
add.w d0,d0
swap d0
addx.w d0,d0
lsl.w #2,d0
lea (a6,d0.w),a5
move.b (a5),(a4)+ |R
move.b 1(a5),(a4)+ |G
move.b 2(a5),(a4)+ |B
swap d5
dbra d5,pp_8_to_24_exp
move.l (sp)+,d6
move.l (sp)+,d4
subq.l #1,d4
bpl.b pp_8_to_24
moveq #1,d0
rts

View File

@@ -0,0 +1,15 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer
CPU = -m68020-60
LIB = -ljpeg -lexif -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
DSP_OBJ = jpgdsp.o
OBJ = $(LDG_STARTUP_OBJ) $(DSP_OBJ) jpgldg.o
PROGRAM = jpg.ldg
include ../../../common.mak

View File

@@ -0,0 +1,503 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
free software--to make sure the software is free for all its users.
This license, the Lesser General Public License, applies to some
specially designated software packages--typically libraries--of the
Free Software Foundation and other authors who decide to use it. You
can use it too, but we suggest you first think carefully about whether
this license or the ordinary General Public License is the better
strategy to use in any particular case, based on the explanations below.
When we speak of free software, we are referring to freedom of use,
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To protect your rights, we need to make restrictions that forbid
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That's all there is to it!

View File

@@ -0,0 +1,93 @@
/* JPEGD header file
<09>1992-93 Brainstorm & Atari Corporation.
to be included after vdi.h
Last modification on 8-apr-1993.
*/
typedef struct _JPGD_STRUCT {
void *InPointer; /* JPEG Image Pointer */
void *OutPointer; /* Output Buffer/Filename Pointer (see OutFlag) */
long InSize; /* JPEG Image Size (Bytes) */
long OutSize; /* Output Image Size (Bytes) */
short InComponents; /* JPEG Image Components Number (1->4) */
short OutComponents; /* Output Components Number (1->4) */
short OutPixelSize; /* Output Pixel Size (1->4) */
short OutFlag; /* 0 (RAM Output) / -1 (Disk Output) */
short XLoopCounter; /* Number of MCUs per Row */
short YLoopCounter; /* Number of MCUs per Column */
short (*Create)(struct _JPGD_STRUCT *); /* Pointer to User Routine / NULL */
short (*Write)(struct _JPGD_STRUCT *); /* Pointer to User Routine / NULL */
short (*Close)(struct _JPGD_STRUCT *); /* Pointer to User Routine / NULL */
short (*SigTerm)(struct _JPGD_STRUCT *); /* Pointer to User Routine / NULL */
uint8 *Comp1GammaPtr; /* Component 1 Gamma Table / NULL */
uint8 *Comp2GammaPtr; /* Component 2 Gamma Table / NULL */
uint8 *Comp3GammaPtr; /* Component 3 Gamma Table / NULL */
uint8 *Comp4GammaPtr; /* Component 4 Gamma Table / NULL */
short (*UserRoutine)(struct _JPGD_STRUCT *); /* Pointer to User Routine (Called during Decompression) / NULL */
void *OutTmpPointer; /* Current OutPointer / Temporary Disk Buffer Pointer (see OutFlag) */
short MCUsCounter; /* Number of MCUs not Decoded */
short OutTmpHeight; /* Number of Lines in OutTmpPointer */
long User[2]; /* Free, Available for User */
short OutHandle; /* 0 / Output File Handle (see OutFlag) */
MFDB MFDBStruct; /* Output Image MFDB */
} JPGD_STRUCT;
typedef JPGD_STRUCT *JPGD_PTR;
#define JPGD_MAGIC '_JPD'
#define JPGD_VERSION 1
enum JPGD_ENUM {
NOERROR=0, /* File correctly uncompressed */
UNKNOWNFORMAT, /* File is not JFIF (Error) */
INVALIDMARKER, /* Reserved CCITT Marker Found (Error) */
SOF1MARKER, /* Mode not handled by the decoder (Error) */
SOF2MARKER, /* Mode not handled by the decoder (Error) */
SOF3MARKER, /* Mode not handled by the decoder (Error) */
SOF5MARKER, /* Mode not handled by the decoder (Error) */
SOF6MARKER, /* Mode not handled by the decoder (Error) */
SOF7MARKER, /* Mode not handled by the decoder (Error) */
SOF9MARKER, /* Mode not handled by the decoder (Error) */
SOF10MARKER, /* Mode not handled by the decoder (Error) */
SOF11MARKER, /* Mode not handled by the decoder (Error) */
SOF13MARKER, /* Mode not handled by the decoder (Error) */
SOF14MARKER, /* Mode not handled by the decoder (Error) */
SOF15MARKER, /* Mode not handled by the decoder (Error) */
RSTmMARKER, /* Unexpected RSTm found (Error) */
BADDHTMARKER, /* Buggy DHT Marker (Error) */
DACMARKER, /* Marker not handled by the decoder (Error) */
BADDQTMARKER, /* Buggy DQT Marker (Error) */
BADDNLMARKER, /* Invalid/Unexpected DNL Marker (Error) */
BADDRIMARKER, /* Invalid DRI Header Size (Error) */
DHPMARKER, /* Marker not handled by the decoder (Error) */
EXPMARKER, /* Marker not handled by the decoder (Error) */
BADSUBSAMPLING, /* Invalid components subsampling (Error) */
NOTENOUGHMEMORY, /* Not enough memory... (Error) */
DECODERBUSY, /* Decoder is busy (Error) */
DSPBUSY, /* Can't lock the DSP (Error) */
BADSOFnMARKER, /* Buggy SOFn marker (Error) */
BADSOSMARKER, /* Buggy SOS marker (Error) */
HUFFMANERROR, /* Buggy Huffman Stream (Error) */
BADPIXELFORMAT, /* Invalid Output Pixel Format (Error) */
DISKFULL, /* Hard/Floppy Disk Full (Error) */
MISSINGMARKER, /* Marker expected but not found (Error) */
IMAGETRUNCATED, /* More bytes Needed (Error) */
EXTRABYTES, /* Dummy Bytes after EOI Marker (Warning) */
USERABORT, /* User Routine signaled 'Abort' */
DSPMEMORYERROR, /* Not Enough DSP RAM (Error) */
NORSTmMARKER, /* RSTm Marker expected but not found */
BADRSTmMARKER, /* Invalid RSTm Marker Number */
DRIVERCLOSED, /* Driver is Already Closed. */
ENDOFIMAGE /* Stop Decoding (Internal Message, Should Never Appear) */
};
typedef long JPGD_ENUM;
typedef struct {
long JPGDVersion;
JPGD_ENUM (*JPGDOpenDriver)(JPGD_PTR);
JPGD_ENUM (*JPGDCloseDriver)(JPGD_PTR);
long (*JPGDGetStructSize)(void);
JPGD_ENUM (*JPGDGetImageInfo)(JPGD_PTR);
JPGD_ENUM (*JPGDGetImageSize)(JPGD_PTR);
JPGD_ENUM (*JPGDDecodeImage)(JPGD_PTR);
} JPGDDRV_STRUCT;
typedef JPGDDRV_STRUCT *JPGDDRV_PTR;

View File

@@ -0,0 +1,233 @@
#include "zview.h"
#include "jpgdh.h"
int16 dsp_ram = 0;
int16 reader_dsp_init( const char *name, IMGINFO info);
JPGDDRV_PTR jpgdrv = NULL;
#define JPGDOpenDriver( jpgd, jpgdrv) \
__extension__ \
({ register int32 retv __asm__("d0"); \
__asm__ volatile \
(" movl %1,a0; \
movl (%2,4),a1; \
jsr a1@; \
" /* end of code */ \
: "=r" (retv) /* out */ \
: "a" (jpgd) /* in */ \
, "a" (jpgdrv) /* in */ \
: "a0", "a1" \
); \
retv; \
})
#define JPGDCloseDriver( jpgd, jpgdrv) \
__extension__ \
({ register int32 retv __asm__("d0"); \
__asm__ volatile \
(" movl %1,a0; \
movl (%2,8),a1; \
jsr a1@; \
" /* end of code */ \
: "=r" (retv) /* out */ \
: "a" (jpgd) /* in */ \
, "a" (jpgdrv) /* in */ \
: "a0", "a1" \
); \
retv; \
})
#define JPGDGetImageInfo( jpgd, jpgdrv) \
__extension__ \
({ register int32 retv __asm__("d0"); \
__asm__ volatile \
(" movl %1,a0; \
movl (%2,16),a1; \
jsr a1@; \
" /* end of code */ \
: "=r" (retv) /* out */ \
: "a" (jpgd) /* in */ \
, "a" (jpgdrv) /* in */ \
: "a0", "a1" \
); \
retv; \
})
#define JPGDGetImageSize( jpgd, jpgdrv) \
__extension__ \
({ register int32 retv __asm__("d0"); \
__asm__ volatile \
(" movl %1,a0; \
movl (%2,20),a1; \
jsr a1@; \
" /* end of code */ \
: "=r" (retv) /* out */ \
: "a" (jpgd) /* in */ \
, "a" (jpgdrv) /* in */ \
: "a0", "a1" \
); \
retv; \
})
#define JPGDDecodeImage( jpgd, jpgdrv) \
__extension__ \
({ register int32 retv __asm__("d0"); \
__asm__ volatile \
(" movl %1,a0; \
movl (%2,24),a1; \
jsr a1@; \
" /* end of code */ \
: "=r" (retv) /* out */ \
: "a" (jpgd) /* in */ \
, "a" (jpgdrv) /* in */ \
: "a0", "a1" \
); \
retv; \
})
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
int16 reader_dsp_init( const char *name, IMGINFO info)
{
char pad[] = { -1, -1, -1, -1, -1, -1, -1, -1, 0, 0};
void *src, *dst;
int16 jpeg_file;
int32 jpgdsize, jpeg_file_size;
JPGD_PTR jpgd;
if ( ( jpeg_file = ( int16)Fopen( name, 0)) < 0)
return GOLBAL_ERROR;
jpeg_file_size = Fseek( 0L, jpeg_file, 2);
Fseek( 0L, jpeg_file, 0);
if (( src = ( void*)Mxalloc( jpeg_file_size + sizeof( pad), dsp_ram)) == NULL)
{
Fclose( jpeg_file);
return GOLBAL_ERROR;
}
if ( Fread( jpeg_file, jpeg_file_size, src) != jpeg_file_size)
{
Mfree( src);
Fclose( jpeg_file);
return GOLBAL_ERROR;
}
Fclose( jpeg_file);
memcpy( ( uint8 *)src + jpeg_file_size, pad, sizeof( pad));
jpgdsize = jpgdrv->JPGDGetStructSize();
if( jpgdsize < 1)
{
Mfree( src);
return DSP_ERROR;
}
jpgd = ( JPGD_PTR)Mxalloc( jpgdsize, dsp_ram);
if( jpgd == NULL)
{
Mfree( src);
return GOLBAL_ERROR;
}
memset( ( void *)jpgd, 0, jpgdsize);
if( JPGDOpenDriver( jpgd, jpgdrv) != 0)
{
Dsp_Unlock();
Mfree( jpgd);
Mfree( src);
return DSP_ERROR;
}
jpgd->InPointer = src;
jpgd->InSize = jpeg_file_size;
if( JPGDGetImageInfo( jpgd, jpgdrv) != 0)
{
JPGDCloseDriver( jpgd, jpgdrv);
Dsp_Unlock();
Mfree( jpgd);
Mfree( src);
return DSP_ERROR;
}
jpgd->OutComponents = 3;
jpgd->OutPixelSize = 3;
if( JPGDGetImageSize( jpgd, jpgdrv) != 0)
{
JPGDCloseDriver( jpgd, jpgdrv);
Mfree( jpgd);
Mfree( src);
return DSP_ERROR;
}
if(( dst = ( void*)Mxalloc( jpgd->OutSize, dsp_ram)) == NULL)
{
JPGDCloseDriver( jpgd, jpgdrv);
Mfree( jpgd);
Mfree( src);
return GOLBAL_ERROR;
}
jpgd->OutPointer = dst;
jpgd->OutFlag = 0;
jpgd->UserRoutine = NULL;
if( JPGDDecodeImage( jpgd, jpgdrv) != 0)
{
JPGDCloseDriver( jpgd, jpgdrv);
Mfree( jpgd);
Mfree( src);
Mfree( dst);
return DSP_ERROR;
}
info->components = 3;
info->width = jpgd->MFDBStruct.fd_w;
info->height = jpgd->MFDBStruct.fd_h;
info->real_width = info->width;
info->real_height = info->height;
info->memory_alloc = TT_RAM;
info->planes = 24;
info->orientation = UP_TO_DOWN;
info->colors = 1uL << ( uint32)info->planes;
info->indexed_color = FALSE;
info->page = 1;
info->delay = 0;
info->num_comments = 0;
info->max_comments_length = 0;
info->_priv_ptr = dst;
info->_priv_var = jpgd->MFDBStruct.fd_wdwidth << 1;
info->_priv_var_more = info->_priv_var;
strcpy( info->info, "JPEG");
strcpy( info->compression, "JPG");
JPGDCloseDriver( jpgd, jpgdrv);
Mfree( jpgd);
Mfree( src);
return ALL_OK;
}

View File

@@ -0,0 +1,813 @@
#include <stdlib.h>
#include <stdio.h>
#include <jpeglib.h>
#include "zview.h"
#include "jpgdh.h"
#include <libexif/exif-data.h>
#include <libexif/exif-utils.h>
void CDECL init( void);
boolean CDECL reader_init( const char *name, IMGINFO info);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_quit( IMGINFO info);
boolean CDECL encoder_init( const char *name, IMGINFO info);
boolean CDECL encoder_write( IMGINFO info, uint8 *buffer);
void CDECL encoder_quit( IMGINFO info);
void CDECL set_jpg_option( int16 set_quality, J_COLOR_SPACE set_color_space, boolean set_progressive);
extern int16 reader_dsp_init( const char *name, IMGINFO info);
PROC LibFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit},
{ "encoder_init", "", encoder_init},
{ "encoder_write", "", encoder_write},
{ "encoder_quit", "", encoder_quit},
{ "set_jpg_option", "", set_jpg_option}
};
LDGLIB plugin =
{
0x0200, /* Plugin version */
9, /* Number of plugin's functions */
LibFunc, /* List of functions */
"JPGJPEPEG", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. */
NULL,
3L /* Howmany file type are supported by this plugin */
};
typedef struct
{
struct jpeg_source_mgr pub; /* public fields */
uint8 *buffer;
int size;
JOCTET terminal[2];
}my_source_mgr;
/* Options*/
static int quality = 90; /* quality 0 -> 100 % */
static J_COLOR_SPACE color_space = JCS_RGB;
static boolean progressive = FALSE;
/* Brainstorm DSP driver cookie pointer */
extern JPGDDRV_PTR jpgdrv;
boolean dsp_decoding = FALSE;
extern int16 dsp_ram;
typedef struct jpeg_decompress_struct *JPEG_DEC;
typedef struct jpeg_error_mgr *JPEG_ERR;
typedef struct jpeg_compress_struct *JPEG_ENC;
typedef my_source_mgr *my_src_ptr;
static void _jpeg_shutup( j_common_ptr cinfo, int msg_level)
{
( void)cinfo;
( void)msg_level;
}
static void _jpeg_errjmp( j_common_ptr cinfo)
{
jmp_buf *escape = cinfo->client_data;
if ( escape)
longjmp( *escape, TRUE);
}
static void init_source (j_decompress_ptr cinfo)
{
}
static boolean fill_input_buffer (j_decompress_ptr cinfo)
{
my_src_ptr src = (my_src_ptr) cinfo->src;
src->pub.next_input_byte = src->terminal;
src->pub.bytes_in_buffer = 2;
src->terminal[0] = (JOCTET) 0xFF;
src->terminal[1] = (JOCTET) JPEG_EOI;
return TRUE;
}
static void skip_input_data( j_decompress_ptr cinfo, long num_bytes)
{
my_src_ptr src = (my_src_ptr) cinfo->src;
src->pub.next_input_byte = src->pub.next_input_byte + num_bytes;
}
static void term_source (j_decompress_ptr cinfo)
{
}
boolean decompress_thumbnail_image( void *source, uint32 size, IMGINFO info)
{
int header = 0;
jmp_buf escape;
JPEG_ERR jerr;
JPEG_DEC jpeg;
my_src_ptr src;
jpeg = ( JPEG_DEC) malloc( sizeof( struct jpeg_decompress_struct));
jerr = ( JPEG_ERR) malloc( sizeof( struct jpeg_error_mgr));
if ( jpeg == NULL || jerr == NULL)
{
if ( jerr) free( jerr);
if ( jpeg) free( jpeg);
return FALSE;
}
if( setjmp( escape))
{
if ( header == 2)
jpeg_abort_decompress( jpeg);
jpeg_destroy_decompress( jpeg);
if ( jerr) free( jerr);
if ( jpeg) free( jpeg);
return FALSE;
}
jpeg->err = jpeg_std_error( jerr);
jpeg->err->emit_message = _jpeg_shutup;
jpeg->err->error_exit = _jpeg_errjmp;
jpeg->client_data = &escape;
jpeg_create_decompress( jpeg);
if (jpeg->src == NULL)
jpeg->src = (struct jpeg_source_mgr *)(*jpeg->mem->alloc_small)((j_common_ptr)jpeg, JPOOL_PERMANENT, sizeof (my_source_mgr));
src = (my_src_ptr)jpeg->src;
src->pub.init_source = init_source;
src->pub.fill_input_buffer = fill_input_buffer;
src->pub.skip_input_data = skip_input_data;
src->pub.resync_to_restart = jpeg_resync_to_restart;
src->pub.term_source = term_source;
src->pub.bytes_in_buffer = size;
src->pub.next_input_byte = source;
src->buffer = source;
src->size = size;
jpeg_read_header( jpeg, TRUE);
jpeg->dct_method = JDCT_IFAST;
jpeg->do_fancy_upsampling = FALSE;
header = 1;
jpeg_start_decompress( jpeg);
header = 2;
switch( jpeg->out_color_space)
{
case JCS_RGB:
info->components = 3;
break;
case JCS_GRAYSCALE:
info->components = 1;
break;
default:
jpeg->out_color_space = JCS_RGB;
info->components = jpeg->out_color_components = 3;
break;
}
info->width = jpeg->image_width;
info->height = jpeg->image_height;
info->planes = ( ( jpeg->out_color_space == JCS_RGB) ? 24 : 8);
info->colors = 1 << info->planes;
info->_priv_ptr = ( void*)jpeg;
info->_priv_var_more = 1;
info->_priv_var = -1;
jpeg->client_data = NULL;
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
JPEG_ERR jerr;
JPEG_DEC jpeg;
jpeg_saved_marker_ptr mark;
txt_data *comment;
jmp_buf escape;
FILE* jpeg_file;
int16 header = 0;
/* If Brainstorm cookie is used, we try to decode with it*/
if( jpgdrv)
{
int16 dsp_result = reader_dsp_init( name, info);
switch( dsp_result)
{
case GOLBAL_ERROR:
dsp_decoding = FALSE;
return FALSE;
case DSP_ERROR:
case PROGRESSIVE_JPG:
dsp_decoding = FALSE;
break;
case ALL_OK:
dsp_decoding = TRUE;
return TRUE;
}
}
if ( ( jpeg_file = fopen( name, "rb")) == NULL)
return FALSE;
jpeg = ( JPEG_DEC) malloc( sizeof( struct jpeg_decompress_struct));
jerr = ( JPEG_ERR) malloc( sizeof( struct jpeg_error_mgr));
comment = ( txt_data*)malloc( sizeof( txt_data));
if ( jpeg == NULL || jerr == NULL || comment == NULL)
{
if ( comment) free( comment);
if ( jerr) free( jerr);
if ( jpeg) free( jpeg);
fclose( jpeg_file);
return FALSE;
}
comment->lines = 0;
comment->max_lines_length = 0;
comment->txt[0] = NULL;
jpeg->err = jpeg_std_error( jerr);
jpeg->err->emit_message = _jpeg_shutup;
jpeg->err->error_exit = _jpeg_errjmp;
jpeg->client_data = &escape;
if ( setjmp( escape))
{
if ( header >= 2)
jpeg_abort_decompress( jpeg);
jpeg_destroy_decompress( jpeg);
if ( comment)
{
register int16 i;
for ( i = 0; i < comment->lines; i++)
{
if( comment->txt[i])
free( comment->txt[i]);
}
free( comment);
comment = NULL;
}
if ( jerr) free( jerr);
if ( jpeg) free( jpeg);
fclose( jpeg_file);
return FALSE;
}
jpeg_create_decompress( jpeg);
jpeg_stdio_src( jpeg, jpeg_file);
jpeg_save_markers( jpeg, JPEG_COM, 0xffff); /* comment */
jpeg_save_markers( jpeg, M_EXIF, 0xFFFF); /* EXIF */
jpeg_read_header( jpeg, TRUE);
// faster that the default method ( 10%) for a very little output quality lost
jpeg->dct_method = JDCT_IFAST;
jpeg->do_fancy_upsampling = FALSE;
header = 1;
jpeg_start_decompress( jpeg);
header = 2;
jpeg->client_data = NULL;
switch( jpeg->out_color_space)
{
case JCS_RGB:
info->components = 3;
break;
case JCS_GRAYSCALE:
info->components = 1;
break;
default:
jpeg->out_color_space = JCS_RGB;
info->components = jpeg->out_color_components = 3;
break;
}
info->real_width = jpeg->image_width;
info->real_height = jpeg->image_height;
info->width = info->real_width;
info->height = info->real_height;
info->planes = ( ( jpeg->out_color_space == JCS_RGB) ? 24 : 8);
info->orientation = UP_TO_DOWN;
info->colors = 1 << info->planes;
info->memory_alloc = TT_RAM;
info->indexed_color = FALSE;
info->page = 1;
info->delay = 0;
strcpy( info->info, "JPEG");
if( info->planes == 8)
strcat( info->info, " Greyscale");
strcpy( info->compression, "JPG");
for ( mark = jpeg->marker_list; mark; mark = mark->next)
{
if( mark->marker == JPEG_COM)
{
if (!mark->data || !mark->data_length)
continue;
comment->txt[comment->lines] = ( int8*)malloc( mark->data_length + 1);
if( comment->txt[comment->lines] == NULL)
continue;
memcpy( comment->txt[comment->lines], mark->data, mark->data_length);
comment->max_lines_length = MAX( comment->max_lines_length, ( int16)mark->data_length + 1);
comment->lines++;
}
else if( mark->marker == M_EXIF)
{
int i, l, lenght;
char value[1024+256];
ExifData *exifData = exif_data_new_from_data(( char*)mark->data, mark->data_length);
if( !exifData)
continue;
for( i = 0; i < EXIF_IFD_COUNT; i++)
{
ExifContent* content = exifData->ifd[i];
for ( l = 0; l < content->count; l++)
{
if( comment->lines > 253)
break;
ExifEntry *e = content->entries[l];
sprintf( value, "%s", exif_tag_get_name (e->tag));
strcat( value, ": ");
lenght = strlen( value);
exif_entry_get_value( e, &value[lenght], sizeof(value) - lenght);
lenght = strlen( value);
comment->txt[comment->lines] = ( int8*)malloc( lenght + 1);
if( comment->txt[comment->lines] == NULL)
break;
strcpy( comment->txt[comment->lines], value);
comment->max_lines_length = MAX( comment->max_lines_length, ( int16)lenght);
comment->lines++;
}
}
if(( exifData->data) && ( exifData->size > 0) && info->thumbnail)
{
int32 size = exifData->size;
info->__priv_ptr_more = malloc( size + 1);
memcpy( info->__priv_ptr_more, exifData->data, size);
exif_data_unref( exifData);
jpeg_finish_decompress( jpeg);
jpeg_destroy_decompress( jpeg);
free( jpeg->err);
free( jpeg);
fclose( jpeg_file);
if( decompress_thumbnail_image( info->__priv_ptr_more, size, info))
{
info->num_comments = comment->lines;
info->max_comments_length = comment->max_lines_length;
info->_priv_ptr_more = ( void*)comment;
return TRUE;
}
else // We can't extract the thumbnail :/
{
free( info->__priv_ptr_more);
exif_data_unref( exifData);
if ( comment)
{
register int16 i;
for ( i = 0; i < comment->lines; i++)
{
if( comment->txt[i])
free( comment->txt[i]);
}
free( comment);
comment = NULL;
}
return FALSE;
}
}
exif_data_unref( exifData);
}
}
info->num_comments = comment->lines;
info->max_comments_length = comment->max_lines_length;
info->_priv_ptr = ( void*)jpeg;
info->_priv_ptr_more = ( void*)comment;
info->__priv_ptr_more = NULL;
info->_priv_var = jpeg_file;
info->_priv_var_more = 0; /* 1 for exif thumbnail */
jpeg->client_data = NULL;
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function mus be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
register int16 i;
txt_data *comment;
if( dsp_decoding)
return;
comment = ( txt_data *)info->_priv_ptr_more;
for ( i = 0; i < txtdata->lines; i++)
strcpy( txtdata->txt[i] , comment->txt[i]);
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
if( dsp_decoding)
{
const void *source = ( uint8*)info->_priv_ptr + info->_priv_var_more;
memcpy( ( void*)buffer, source, info->_priv_var);
info->_priv_var_more += info->_priv_var;
return TRUE;
}
if( jpeg_read_scanlines(( JPEG_DEC)info->_priv_ptr, ( JSAMPROW*)&buffer, 1))
return TRUE;
return FALSE;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
JPEG_DEC jpeg;
txt_data *comment;
if( dsp_decoding)
{
if( info->_priv_ptr)
{
// DSP decoder uses Mxalloc()
Mfree( info->_priv_ptr);
}
return;
}
jpeg = ( JPEG_DEC)info->_priv_ptr;
comment = ( txt_data *)info->_priv_ptr_more;
if( !jpeg)
return;
if( comment)
{
register int16 i;
for ( i = 0; i < comment->lines; i++)
{
if( comment->txt[i])
free( comment->txt[i]);
}
free( comment);
}
jpeg_finish_decompress( jpeg);
jpeg_destroy_decompress( jpeg);
free( jpeg->err);
free( jpeg);
/* thumbnail mode? */
if( info->__priv_ptr_more)
{
free( info->__priv_ptr_more);
return;
}
fclose( info->_priv_var);
}
/*==================================================================================*
* boolean set_jpg_option: *
* This function set some encoder's options *
*----------------------------------------------------------------------------------*
* input: *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL set_jpg_option( int16 set_quality, J_COLOR_SPACE set_color_space, boolean set_progressive)
{
quality = set_quality;
color_space = set_color_space;
progressive = set_progressive;
}
/*==================================================================================*
* boolean CDECL encoder_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the encoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL encoder_init( const char *name, IMGINFO info)
{
JPEG_ERR jerr = NULL;
JPEG_ENC jpeg = NULL;
FILE* jpeg_file;
jmp_buf escape;
int16 header = 0;
if ( ( jpeg_file = fopen( name, "wb")) == NULL)
return FALSE;
jpeg = ( JPEG_ENC) malloc( sizeof( struct jpeg_decompress_struct));
jerr = ( JPEG_ERR) malloc( sizeof( struct jpeg_error_mgr));
if ( jpeg == NULL || jerr == NULL)
{
if ( jerr) free( jerr);
if ( jpeg) free( jpeg);
fclose( jpeg_file);
return FALSE;
}
if ( setjmp( escape))
{
if ( header > 1)
jpeg_abort_compress( jpeg);
jpeg_destroy_compress( jpeg);
if ( jerr) free( jerr);
if ( jpeg) free( jpeg);
jerr = NULL;
jpeg = NULL;
fclose( jpeg_file);
return FALSE;
}
jpeg->err = jpeg_std_error( jerr);
jpeg->err->emit_message = _jpeg_shutup;
jpeg->err->error_exit = _jpeg_errjmp;
jpeg->client_data = &escape;
jpeg_create_compress( jpeg);
jpeg_stdio_dest( jpeg, jpeg_file);
jpeg->image_width = info->width;
jpeg->image_height = info->height;
jpeg->input_components = info->components = 3;
jpeg->in_color_space = JCS_RGB;
jpeg_set_defaults( jpeg);
jpeg_set_colorspace ( jpeg, color_space);
/* jpeg->num_components = ( color_space == JCS_RGB ? 3 : 1);
jpeg->jpeg_color_space = color_space;
*/ jpeg->progressive_mode = progressive;
jpeg_set_quality( jpeg, quality, TRUE);
header = 1;
jpeg_start_compress( jpeg, TRUE);
header = 2;
info->planes = 24;
info->colors = 16777215L;
info->orientation = UP_TO_DOWN;
info->real_width = info->width;
info->real_height = info->height;
info->memory_alloc = TT_RAM;
info->indexed_color = FALSE;
info->page = 1;
info->delay = 0;
info->_priv_ptr = ( void*)jpeg;
info->_priv_ptr_more = NULL;
info->__priv_ptr_more = NULL;
info->_priv_var = jpeg_file;
info->_priv_var_more = 0;
jpeg->client_data = NULL;
return TRUE;
}
/*==================================================================================*
* boolean CDECLencoder_write: *
* This function write data from buffer to file *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The source buffer. *
* info -> The IMGINFO struct . *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL encoder_write( IMGINFO info, uint8 *buffer)
{
( void)jpeg_write_scanlines( ( JPEG_ENC)info->_priv_ptr, ( JSAMPROW*)&buffer, 1);
return TRUE;
}
/*==================================================================================*
* boolean CDECL encoder_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL encoder_quit( IMGINFO info)
{
JPEG_ENC jpeg = ( JPEG_ENC)info->_priv_ptr;
if( jpeg)
{
jpeg_finish_compress( jpeg);
jpeg_destroy_compress( jpeg);
free( jpeg->err);
free( jpeg);
fclose( info->_priv_var);
}
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
int32 mach, cpu = 0;
/* DSP decoder present */
if( Getcookie( C__JPD, ( long*)&jpgdrv) != 0)
jpgdrv = NULL;
else
{
// Cconws("JPG Cookie found \n\r");
Getcookie( C__MCH, ( long*)&mach);
/* If Aranym is detected, we decode with the DSP routine */
/* and we can use TT ram for DSP allocation */
if( mach == 0x50000L)
{
dsp_ram = 3;
// Cconws("JPG Cookie used \n\r");
return;
}
Getcookie( C__CPU, ( long*)&cpu);
cpu &= 0xFFFF;
/* if we have a CPU > 68030, we decode with this one, it's faster */
if( cpu != 30)
jpgdrv = NULL;
}
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &plugin);
return( 0);
}

View File

@@ -0,0 +1,9 @@
Download required libs from:
https://sourceforge.net/projects/giflib/
http://www.libpng.org/pub/png/libpng.html
http://www.ijg.org/
http://libtiff.maptools.org/
http://easybmp.sourceforge.net/
http://libexif.sourceforge.net/
http://www.cs.wisc.edu/graphics/Gallery/LibTarga/

View File

@@ -0,0 +1,13 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer -finline-functions
CPU = -m68020-60
LIB = -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) neoldg.o
PROGRAM = neo.ldg
include ../../../common.mak

View File

@@ -0,0 +1,503 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
free software--to make sure the software is free for all its users.
This license, the Lesser General Public License, applies to some
specially designated software packages--typically libraries--of the
Free Software Foundation and other authors who decide to use it. You
can use it too, but we suggest you first think carefully about whether
this license or the ordinary General Public License is the better
strategy to use in any particular case, based on the explanations below.
When we speak of free software, we are referring to freedom of use,
not price. Our General Public Licenses are designed to make sure that
you have the freedom to distribute copies of free software (and charge
for this service if you wish); that you receive source code or can get
it if you want it; that you can change the software and use pieces of
it in new free programs; and that you are informed that you can do
these things.
To protect your rights, we need to make restrictions that forbid
distributors to deny you these rights or to ask you to surrender these
rights. These restrictions translate to certain responsibilities for
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For example, if you distribute copies of the library, whether gratis
or for a fee, you must give the recipients all the rights that we gave
you. You must make sure that they, too, receive or can get the source
code. If you link other code with the library, you must provide
complete object files to the recipients, so that they can relink them
with the library after making changes to the library and recompiling
it. And you must show them these terms so they know their rights.
We protect your rights with a two-step method: (1) we copyright the
library, and (2) we offer you this license, which gives you legal
permission to copy, distribute and/or modify the library.
To protect each distributor, we want to make it very clear that
there is no warranty for the free library. Also, if the library is
modified by someone else and passed on, the recipients should know
that what they have is not the original version, so that the original
author's reputation will not be affected by problems that might be
introduced by others.
Finally, software patents pose a constant threat to the existence of
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any patent license obtained for a version of the library must be
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Most GNU software, including some libraries, is covered by the
ordinary GNU General Public License. This license, the GNU Lesser
General Public License, applies to certain designated libraries, and
is quite different from the ordinary General Public License. We use
this license for certain libraries in order to permit linking those
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When a program is linked with a library, whether statically or using
a shared library, the combination of the two is legally speaking a
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entire combination fits its criteria of freedom. The Lesser General
Public License permits more lax criteria for linking other code with
the library.
We call this license the "Lesser" General Public License because it
does Less to protect the user's freedom than the ordinary General
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That's all there is to it!

View File

@@ -0,0 +1,302 @@
#include "zview.h"
boolean CDECL reader_init( const char *name, IMGINFO info);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
void CDECL reader_quit( IMGINFO info);
void CDECL init( void);
PROC NEOFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit}
};
LDGLIB neo_plugin =
{
0x0200, /* Plugin version */
5, /* Number of plugin's functions */
NEOFunc, /* List of functions */
"NEO", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
1L /* Howmany file type are supported by this plugin */
};
typedef struct
{
int16 flags; /* Always 0 */
int16 resolution; /* 0 = low, 1 = medium, 3 = high */
uint16 palette[16]; /* Picture palette in Atari ST hardware format */
int8 filename[12]; /* The original file name */
int16 color_anim_limit; /* color animation limit */
int16 color_anim_speed; /* color animation speed and direction */
int16 color_steps; /* numbre of color step */
int16 x_offset; /* image offset */
int16 y_offset; /* " */
int16 width;
int16 height;
int16 reserverd[33];
} NEOHDR;
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
int32 position;
int16 handle;
NEOHDR *neo;
if ( ( handle = ( int16)Fopen( name, 0)) < 0)
return FALSE;
if( Fseek( 0L, handle, 2) != 32128L)
{
Fclose( handle);
return FALSE;
}
Fseek( 0L, handle, 0);
neo = ( NEOHDR *)malloc( 32128L);
if ( neo == NULL)
{
Fclose( handle);
return FALSE;
}
if ( Fread( handle, 32128L, neo) != 32128L)
{
free( neo);
Fclose( handle);
return FALSE;
}
Fclose( handle);
switch( neo->resolution)
{
case 0:
info->width = 320;
info->height = 200;
info->planes = 4;
info->components = 3;
info->indexed_color = TRUE;
info->colors = 16;
break;
case 1:
info->width = 640;
info->height = 200;
info->planes = 2;
info->components = 3;
info->indexed_color = TRUE;
info->colors = 4;
break;
case 2:
info->width = 640;
info->height = 400;
info->planes = 1;
info->components = 1;
info->indexed_color = FALSE;
info->colors = 2;
break;
default:
free( neo);
return FALSE;
}
position = sizeof( NEOHDR);
info->real_width = info->width;
info->real_height = info->height;
info->memory_alloc = TT_RAM;
info->page = 1;
info->delay = 0;
info->orientation = UP_TO_DOWN;
info->num_comments = 0;
info->max_comments_length = 0;
info->_priv_ptr = ( void*)neo;
info->_priv_var_more = position;
strcpy( info->info, "Neochrome");
strcpy( info->compression, "None");
if( info->indexed_color)
{
register int16 i;
for ( i = 0; i < info->colors; i++)
{
info->palette[i].red = ((( neo->palette[i] >> 7) & 0xE) + (( neo->palette[i] >> 11) & 0x1)) * 0x11;
info->palette[i].green = ((( neo->palette[i] >> 3) & 0xE) + (( neo->palette[i] >> 7) & 0x1)) * 0x11;
info->palette[i].blue = ((( neo->palette[i] << 1) & 0xE) + (( neo->palette[i] >> 3) & 0x1)) * 0x11;
}
}
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
NEOHDR *neo = ( NEOHDR*)info->_priv_ptr;
uint8 *l, *s = ( uint8*)neo + info->_priv_var_more;
uint16 x, c, p0, p1, p2, p3;
switch( info->planes)
{
case 4:
for( x = 0, l = s; x < info->width; l += 8)
{
p0 = ( l[0] << 8) | l[1];
p1 = ( l[2] << 8) | l[3];
p2 = ( l[4] << 8) | l[5];
p3 = ( l[6] << 8) | l[7];
for ( c = 0; c < 16; c++)
{
buffer[x++] = ((p0 >> 15) & 1) | ((p1 >> 14) & 2) | ((p2 >> 13) & 4) | ((p3 >> 12) & 8);
p0 <<= 1;
p1 <<= 1;
p2 <<= 1;
p3 <<= 1;
}
}
info->_priv_var_more += 160;
break;
case 2:
for ( x = 0, l = s; x < info->width; l += 4)
{
p0 = (l[0] << 8) | l[1];
p1 = (l[2] << 8) | l[3];
for (c = 0; c < 16; c++)
{
buffer[x++] = ((p0 >> 15) & 1) | ((p1 >> 14) & 2);
p0 <<= 1;
p1 <<= 1;
}
}
info->_priv_var_more += 160;
break;
case 1:
for (x = 0, l = s; x < info->width; l += 2)
{
p0 = ( l[0] << 8) | l[1];
for ( c = 0; c < 16; c++)
{
buffer[x++] = ((p0 >> 15) & 1);
p0 <<= 1;
}
}
info->_priv_var_more += 80;
break;
}
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function mus be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
return;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
NEOHDR *neo = ( NEOHDR*)info->_priv_ptr;
free( neo);
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &neo_plugin);
return( 0);
}

View File

@@ -0,0 +1,13 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer
CPU = -m68020-60
LIB = -lpng -lz -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) pngldg.o
PROGRAM = png.ldg
include ../../../common.mak

View File

@@ -0,0 +1,503 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
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as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
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That's all there is to it!

View File

@@ -0,0 +1,364 @@
#include "zview.h"
#include <png.h>
boolean CDECL reader_init( const char *name, IMGINFO info);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
void CDECL reader_quit( IMGINFO info);
void CDECL init( void);
#define alpha_composite( composite, fg, alpha, bg) { \
uint16 register temp = (( uint16)( fg) * ( uint16)( alpha) + \
( uint16)( bg) * ( uint16)(255 - ( uint16)( alpha)) + ( uint16)128); \
( composite) = ( uint8)(( temp + ( temp >> 8)) >> 8); \
}
PROC PNGFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit}
};
LDGLIB png_plugin =
{
0x0200, /* Plugin version */
5, /* Number of plugin's functions */
PNGFunc, /* List of functions */
"PNG", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
1L /* Howmany file type are supported by this plugin */
};
boolean first_pass;
uint8 *line_buffer, *png_image, *png_image_ptr;
int16 number_passes;
/*==================================================================================*
* void tga_write_pixel_to_mem: *
* Write the pixel to the data regarding how the header says the data *
* is ordered. *
*----------------------------------------------------------------------------------*
* input: *
* dst -> the pixel is wrote here. *
* orientation -> the pixel orientation ( from TGA header). *
* pixel_position -> the pixel position in the x axis. *
* width -> the image's width. *
* pixel -> the 24 bits pixel to write. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
png_structp png_ptr = NULL;
png_infop info_ptr = NULL;
FILE* png_file;
char header[8];
int header_size = sizeof( header);
/* png_color_16 my_background = {0,0xFFFF,0xFFFF,0xFFFF,0xFFFF};
png_color_16p image_background;
*/
png_textp png_text_ptr;
int num_text;
first_pass = TRUE;
png_image = NULL;
line_buffer = NULL;
number_passes = 0;
if ( ( png_file = fopen( name, "rb")) == NULL)
return FALSE;
if ( fread( header, 1, header_size, png_file) != header_size || png_sig_cmp( header, 0, header_size))
{
fclose ( png_file);
return FALSE;
}
png_ptr = png_create_read_struct( PNG_LIBPNG_VER_STRING, NULL, 0, 0);
if ( !png_ptr || ( info_ptr = png_create_info_struct ( png_ptr)) == NULL)
{
png_destroy_read_struct ( &png_ptr, &info_ptr, NULL);
fclose ( png_file);
return FALSE;
}
if( setjmp( png_jmpbuf( png_ptr)))
{
png_destroy_read_struct( &png_ptr, &info_ptr, NULL);
fclose ( png_file);
return FALSE;
}
png_init_io ( png_ptr, png_file);
png_set_sig_bytes ( png_ptr, ( int)header_size);
png_read_info ( png_ptr, info_ptr);
if( png_get_color_type( png_ptr, info_ptr) == PNG_COLOR_TYPE_PALETTE)
png_set_expand( png_ptr);
if( png_get_color_type( png_ptr, info_ptr) == PNG_COLOR_TYPE_GRAY && png_get_bit_depth( png_ptr, info_ptr) < 8)
png_set_expand( png_ptr);
if( png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
png_set_tRNS_to_alpha( png_ptr);
if( png_get_bit_depth( png_ptr, info_ptr) == 16)
png_set_strip_16( png_ptr);
if( png_get_color_type( png_ptr, info_ptr) == PNG_COLOR_TYPE_GRAY || png_get_color_type( png_ptr, info_ptr) == PNG_COLOR_TYPE_GRAY_ALPHA)
png_set_gray_to_rgb( png_ptr);
strcpy( info->info, "Portable Network Format ");
strcpy( info->compression, "ZIP");
if ( png_get_interlace_type( png_ptr, info_ptr) == PNG_INTERLACE_ADAM7)
{
strcat( info->info, "( Interlaced)");
number_passes = png_set_interlace_handling( png_ptr);
}
png_read_update_info( png_ptr, info_ptr);
png_get_text( png_ptr, info_ptr, &png_text_ptr, &num_text);
info->width = png_get_image_width( png_ptr, info_ptr);
info->height = png_get_image_height( png_ptr, info_ptr);
info->real_width = info->width;
info->real_height = info->height;
info->memory_alloc = TT_RAM;
info->components = ( png_get_channels( png_ptr, info_ptr) > 3) ? 3 : png_get_channels( png_ptr, info_ptr);
info->planes = png_get_bit_depth( png_ptr, info_ptr);
info->colors = 1 << info->planes;
info->delay = 0;
info->orientation = UP_TO_DOWN;
info->page = 1;
info->num_comments = num_text;
info->max_comments_length = 0;
info->indexed_color = FALSE;
info->_priv_ptr = ( void*)png_ptr;
info->_priv_ptr_more = ( void*)info_ptr;
info->__priv_ptr_more = png_file;
if( png_get_channels( png_ptr, info_ptr) == 4)
{
line_buffer = ( uint8*)malloc( png_get_rowbytes( png_ptr, info_ptr) + 64);
if( line_buffer == NULL)
{
reader_quit( info);
return FALSE;
}
}
if( num_text)
{
register int16 i;
for ( i = 0; i < num_text; i++)
info->max_comments_length = MAX( info->max_comments_length, ( strlen(png_text_ptr[i].key) + png_text_ptr[i].text_length));
info->max_comments_length += 4;
}
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function mus be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
register int16 i;
png_infop info_ptr = ( png_infop)info->_priv_ptr_more;
png_structp png_ptr = ( png_structp)info->_priv_ptr;
png_textp png_text_ptr;
int num_text;
png_get_text( png_ptr, info_ptr, &png_text_ptr, &num_text);
for ( i = 0; i < txtdata->lines; i++)
sprintf( txtdata->txt[i] , "%s: %s", png_text_ptr[i].key, png_text_ptr[i].text);
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
png_structp png_ptr = ( png_structp)info->_priv_ptr;
png_infop info_ptr = ( png_infop)info->_priv_ptr_more;
uint8 *buf;
int16 i;
if( png_get_channels( png_ptr, info_ptr) == 4)
buf = line_buffer;
else
buf = buffer;
if( setjmp( png_jmpbuf( png_ptr)))
return FALSE;
if( png_get_interlace_type( png_ptr, info_ptr) == PNG_INTERLACE_ADAM7)
{
/* We make the first pass here and not before to avoid memory fragmentation */
if( first_pass == TRUE)
{
int16 pass;
png_image = ( uint8*)malloc( png_get_rowbytes( png_ptr, info_ptr) * ( info->height + 1));
png_image_ptr = png_image;
for ( pass = 1; pass < number_passes; pass++)
{
for( i = 0; i < info->height; i++)
{
png_bytep row = png_image + i * png_get_rowbytes( png_ptr, info_ptr);
png_read_row( png_ptr, row, NULL);
}
}
first_pass = FALSE;
}
png_read_row( png_ptr, png_image_ptr, NULL);
memcpy( buf, png_image_ptr, png_get_rowbytes( png_ptr, info_ptr));
png_image_ptr += png_get_rowbytes( png_ptr, info_ptr);
}
else
png_read_row( png_ptr, buf, NULL);
if( png_get_channels( png_ptr, info_ptr) == 4)
{
uint8 red, green, blue, r, g, b, a;
uint8 *dest = buffer, *buf_ptr = buf;
for ( i = info->width; i > 0; --i)
{
r = *buf_ptr++;
g = *buf_ptr++;
b = *buf_ptr++;
a = *buf_ptr++;
if( a == 255)
{
red = r;
green = g;
blue = b;
}
else if ( a == 0)
{
red = 0xFF;
green = 0xFF;
blue = 0xFF;
}
else
{
register uint32 transparent_color = info->background_color;
alpha_composite( red, r, a, ( transparent_color >> 16) & 0xFF);
alpha_composite( green, g, a, ( transparent_color >> 8) & 0xFF);
alpha_composite( blue, b, a, ( transparent_color) & 0xFF);
}
*dest++ = red;
*dest++ = green;
*dest++ = blue;
}
}
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
png_structp png_ptr = ( png_structp)info->_priv_ptr;
png_infop info_ptr = ( png_infop)info->_priv_ptr_more;
if ( png_ptr)
{
if( png_image)
free ( png_image);
if( line_buffer)
free( line_buffer);
if ( !setjmp( png_jmpbuf( png_ptr)))
png_read_end( png_ptr, info_ptr);
png_destroy_read_struct ( &png_ptr, &info_ptr, NULL);
fclose( info->__priv_ptr_more);
info->_priv_ptr = NULL;
info->_priv_ptr_more = NULL;
info->__priv_ptr_more = NULL;
}
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
return;
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &png_plugin);
return( 0);
}

View File

@@ -0,0 +1,13 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer -finline-functions
CPU = -m68020-60
LIB = -lldgserver
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) tgaldg.o
PROGRAM = tga.ldg
include ../../../common.mak

View File

@@ -0,0 +1,503 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
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59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Ty Coon, President of Vice
That's all there is to it!

View File

@@ -0,0 +1,67 @@
#ifndef _libtarga_h_
#define _libtarga_h_
#define TGA_IMG_NODATA (0)
#define TGA_IMG_UNC_PALETTED (1)
#define TGA_IMG_UNC_TRUECOLOR (2)
#define TGA_IMG_UNC_GRAYSCALE (3)
#define TGA_IMG_RLE_PALETTED (9)
#define TGA_IMG_RLE_TRUECOLOR (10)
#define TGA_IMG_RLE_GRAYSCALE (11)
#define TGA_LOWER_LEFT (0)
#define TGA_LOWER_RIGHT (1)
#define TGA_UPPER_LEFT (2)
#define TGA_UPPER_RIGHT (3)
#define HDR_LENGTH (18)
#define HDR_IDLEN (0)
#define HDR_CMAP_TYPE (1)
#define HDR_IMAGE_TYPE (2)
#define HDR_CMAP_FIRST (3)
#define HDR_CMAP_LENGTH (5)
#define HDR_CMAP_ENTRY_SIZE (7)
#define HDR_IMG_SPEC_XORIGIN (8)
#define HDR_IMG_SPEC_YORIGIN (10)
#define HDR_IMG_SPEC_WIDTH (12)
#define HDR_IMG_SPEC_HEIGHT (14)
#define HDR_IMG_SPEC_PIX_DEPTH (16)
#define HDR_IMG_SPEC_IMG_DESC (17)
typedef struct
{
uint8 idlen; /* length of the image_id string below. */
uint8 cmap_type; /* paletted image <=> cmap_type */
uint8 image_type; /* can be any of the IMG_TYPE constants above. */
uint16 cmap_first;
uint16 cmap_length; /* how long the colormap is */
uint8 cmap_entry_size; /* how big a palette entry is. */
uint16 img_spec_xorig; /* the x origin of the image in the image data.*/
uint16 img_spec_yorig; /* the y origin of the image in the image data.*/
uint16 img_spec_width; /* the width of the image. */
uint16 img_spec_height; /* the height of the image. */
uint8 img_spec_pix_depth; /* the depth of a pixel in the image. */
uint8 img_spec_img_desc; /* the image descriptor. */
} targa_hdr;
#define TGA_TRUECOLOR_32 (4)
#define TGA_TRUECOLOR_24 (3)
typedef struct
{
int16 handle;
uint8 *img_buf; /* buffer for 1 line of packet TGA Data */
uint8 alphabits;
uint8 bytes_per_pix;
uint8 orientation;
int32 line_size;
int32 img_buf_len; /* L<>nge des IMG-Buffers */
int32 img_buf_offset; /* Abstand zum Anfang des IMG-Buffers */
int32 img_buf_used; /* Anzahl der benutzten Bytes des IMG-Buffers */
int32 rest_length; /* noch einzulesende Dateil<69>nge */
targa_hdr tga;
} tga_pic;
#endif /* _libtarga_h_ */

View File

@@ -0,0 +1,526 @@
#include "zview.h"
#include "libtarga.h"
#define alpha_composite( composite, fg, alpha) { \
uint16 temp = (( uint16)( fg) * ( uint16)( alpha) + ( uint16)128); \
( composite) = ( uint8)(( temp + ( temp >> 8)) >> 8); \
}
static uint8 *unpack_line1( tga_pic *tga_struct, uint8 *src, uint8 *dst, uint16 line_width);
static int16 fill_img_buf( tga_pic *tga_struct, int32 read);
static int16 unpack_line( tga_pic *tga_struct, uint8 *dst);
boolean CDECL reader_init( const char *name, IMGINFO info);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
void CDECL reader_quit( IMGINFO info);
void CDECL init( void);
PROC TGAFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit}
};
LDGLIB tga_plugin =
{
0x0200, /* Plugin version */
5, /* Number of plugin's functions */
TGAFunc, /* List of functions */
"TGA", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
1L /* Howmany file type are supported by this plugin */
};
/*==================================================================================*
* void tga_write_pixel_to_mem: *
* Write the pixel to the data regarding how the header says the data *
* is ordered. *
*----------------------------------------------------------------------------------*
* input: *
* dst -> the pixel is wrote here. *
* orientation -> the pixel orientation ( from TGA header). *
* pixel_position -> the pixel position in the x axis. *
* width -> the image's width. *
* pixel -> the 24 bits pixel to write. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
static inline void tga_write_pixel_to_mem( uint8 *dst, uint8 orientation, uint16 pixel_position, uint16 width, uint8 *rgb)
{
register uint16 x, addy;
switch( orientation)
{
case TGA_UPPER_LEFT:
case TGA_LOWER_LEFT:
default:
x = pixel_position % width;
break;
case TGA_LOWER_RIGHT:
case TGA_UPPER_RIGHT:
x = width - 1 - ( pixel_position % width);
break;
}
addy = x * 3;
dst[addy++] = rgb[0];
dst[addy++] = rgb[1];
dst[addy] = rgb[2];
}
/*==================================================================================*
* uint32 tga_convert_color: *
* Write the pixel to the data regarding how the header says the data *
* is ordered. *
*----------------------------------------------------------------------------------*
* input: *
* rgb -> bgra value. *
* bpp_in -> original image bitplanes. *
* alphabits -> Alpha bit... 1 if present else 0. *
*----------------------------------------------------------------------------------*
* return: *
* the converted pixel. *
*==================================================================================*/
static inline void tga_convert_color( uint8 *bgra, uint8 *rgb, uint8 bpp_in, uint8 alphabits)
{
uint8 r = 0, g = 0, b = 0, a = 0;
switch( bpp_in)
{
case 32:
case 24:
if( alphabits)
{
/* not premultiplied alpha -- multiply. */
a = bgra[3];
alpha_composite( r, bgra[2], a);
alpha_composite( g, bgra[1], a);
alpha_composite( b, bgra[0], a);
}
else
{
r = bgra[2];
g = bgra[1];
b = bgra[0];
}
break;
case 16:
case 15:
{
/* 16-bit to 32-bit; (force alpha to full) */
register uint16 src16 = (( ( uint16)bgra[1] << 8) | bgra[0]);
b = (( src16) & 0x001F) << 3;
g = (( src16 >> 5) & 0x001F) << 3;
r = (( src16 >> 10) & 0x001F) << 3;
break;
}
}
rgb[0] = r;
rgb[1] = g;
rgb[2] = b;
}
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
uint32 num_pixels, file_length;
int16 handle, format = TGA_TRUECOLOR_24;
uint8 header_buf[HDR_LENGTH];
tga_pic *tga_struct;
if ( ( handle = ( int16)Fopen( name, 0)) < 0)
return FALSE;
if( Fread( handle, HDR_LENGTH, &header_buf) != HDR_LENGTH)
{
Fclose( handle);
return FALSE;
}
tga_struct = ( tga_pic*)malloc( sizeof( tga_pic));
if( tga_struct == NULL)
{
Fclose( handle);
return FALSE;
}
/* byte order is important here. */
tga_struct->tga.idlen = header_buf[0];
tga_struct->tga.cmap_type = header_buf[1];
tga_struct->tga.image_type = header_buf[2];
tga_struct->tga.cmap_first = (uint16)header_buf[3] + ((uint16)header_buf[4] << 8);
tga_struct->tga.cmap_length = (uint16)header_buf[5] + ((uint16)header_buf[6] << 8);
tga_struct->tga.cmap_entry_size = header_buf[7];
tga_struct->tga.img_spec_xorig = (uint16)header_buf[8] + ((uint16)header_buf[9] << 8);
tga_struct->tga.img_spec_yorig = (uint16)header_buf[10] + ((uint16)header_buf[11] << 8);
tga_struct->tga.img_spec_width = (uint16)header_buf[12] + ((uint16)header_buf[13] << 8);
tga_struct->tga.img_spec_height = (uint16)header_buf[14] + ((uint16)header_buf[15] << 8);
tga_struct->tga.img_spec_pix_depth = header_buf[16];
tga_struct->tga.img_spec_img_desc = header_buf[17];
num_pixels = tga_struct->tga.img_spec_width * tga_struct->tga.img_spec_height;
if( num_pixels == 0)
{
free( ( void*)tga_struct);
Fclose( handle);
return FALSE;
}
file_length = Fseek( 0L, handle, 2);
tga_struct->alphabits = tga_struct->tga.img_spec_img_desc & 0x0F;
tga_struct->handle = handle;
/* seek past the image id, if there is one */
if( Fseek( tga_struct->tga.idlen + HDR_LENGTH, handle, 0) < 0 )
{
free( ( void*)tga_struct);
Fclose( handle);
return FALSE;
}
/* if the image type is not supported, just jump out. */
if( tga_struct->tga.image_type != TGA_IMG_UNC_TRUECOLOR && tga_struct->tga.image_type != TGA_IMG_RLE_TRUECOLOR)
{
free( ( void*)tga_struct);
Fclose( handle);
return FALSE;
}
/* compute number of bytes in an image data unit (either index or BGR triple) */
if( tga_struct->tga.img_spec_pix_depth & 0x07 )
tga_struct->bytes_per_pix = ((( 8 - ( tga_struct->tga.img_spec_pix_depth & 0x07)) + tga_struct->tga.img_spec_pix_depth) >> 3);
else
tga_struct->bytes_per_pix = ( tga_struct->tga.img_spec_pix_depth >> 3);
/* assume that there's one byte per pixel */
if( tga_struct->bytes_per_pix == 0 )
tga_struct->bytes_per_pix = 1;
tga_struct->line_size = tga_struct->tga.img_spec_width * tga_struct->bytes_per_pix;
tga_struct->img_buf_len = tga_struct->line_size << 1;
tga_struct->img_buf = ( uint8 *)malloc( tga_struct->img_buf_len + 256L);
if( tga_struct->img_buf == NULL)
{
free( ( void*)tga_struct);
Fclose( handle);
return FALSE;
}
tga_struct->orientation = ( tga_struct->tga.img_spec_img_desc & 0x30) >> 4;
tga_struct->rest_length = file_length - ( tga_struct->tga.idlen + HDR_LENGTH);
if ( tga_struct->img_buf_len > tga_struct->rest_length)
tga_struct->img_buf_len = tga_struct->rest_length;
tga_struct->img_buf_offset = 0;
tga_struct->img_buf_used = Fread( handle, tga_struct->img_buf_len, tga_struct->img_buf);
tga_struct->rest_length -= tga_struct->img_buf_used;
info->width = tga_struct->tga.img_spec_width;
info->height = tga_struct->tga.img_spec_height;
info->real_width = info->width;
info->real_height = info->height;
info->memory_alloc = TT_RAM;
info->components = format;
info->planes = tga_struct->tga.img_spec_pix_depth;
info->colors = 1L << ( uint32)info->planes;
info->page = 1;
info->delay = 0;
info->num_comments = 0;
info->max_comments_length = 0;
info->indexed_color = FALSE;
info->_priv_ptr = ( void *)tga_struct;
if( tga_struct->orientation == TGA_UPPER_LEFT || tga_struct->orientation == TGA_UPPER_RIGHT)
{
info->orientation = UP_TO_DOWN;
}
else
{
info->orientation = DOWN_TO_UP;
}
strcpy( info->info, "Truevision Graphics Adapter");
if( tga_struct->tga.image_type == TGA_IMG_UNC_TRUECOLOR)
{
strcpy( info->compression, "None");
}
else
{
strcpy( info->compression, "RLE");
}
return TRUE;
}
/*==================================================================================*
* int16 fill_img_buf: *
* fill the buffer "tga_struct->img_buf" with a line from file. *
* the buffer can contain 2 lines, this function search also where write the *
* new line from the file. *
*----------------------------------------------------------------------------------*
* input: *
* tga_struct -> tga_pic struct. with all the wanted information. *
* read -> internal counter. *
*----------------------------------------------------------------------------------*
* return: *
* Always 1 ( need to code something more secure) *
*==================================================================================*/
static int16 fill_img_buf( tga_pic *tga_struct, int32 read)
{
tga_struct->img_buf_used -= read;
tga_struct->img_buf_offset += read;
if ( tga_struct->img_buf_offset >= ( tga_struct->img_buf_len >> 1))
{
if ( tga_struct->img_buf_used > 0)
memcpy( tga_struct->img_buf, tga_struct->img_buf + tga_struct->img_buf_offset, tga_struct->img_buf_used);
read = tga_struct->img_buf_offset;
if ( read > tga_struct->rest_length )
read = tga_struct->rest_length;
read = Fread( tga_struct->handle, read, tga_struct->img_buf + tga_struct->img_buf_used);
tga_struct->img_buf_used += read;
tga_struct->img_buf_offset = 0;
tga_struct->rest_length -= read;
}
return( 1);
}
/*==================================================================================*
* uint8 *unpack_line1: *
* depack ( for RLE image) and copy data from source to destination. *
*----------------------------------------------------------------------------------*
* input: *
* tga_struct -> tga_pic struct. with all the wanted information. *
* src -> the source buffer. *
* dst -> the destination buffer. *
* line_width -> the image width. *
*----------------------------------------------------------------------------------*
* return: *
* Howmany source buffer position after that the job is done. *
*==================================================================================*/
static uint8 *unpack_line1( tga_pic *tga_struct, uint8 *src, uint8 *dst, uint16 line_width)
{
register uint16 i, j, bytes_per_pix = ( int16)tga_struct->bytes_per_pix;
uint8 bgra[4], rgb[3], packet_header, repcount;
if( tga_struct->tga.image_type == TGA_IMG_UNC_TRUECOLOR)
{
for ( i = 0; i < line_width; i++)
{
for ( j = 0; j < bytes_per_pix; j++)
bgra[j] = *src++;
tga_convert_color( &bgra[0], &rgb[0], tga_struct->tga.img_spec_pix_depth, tga_struct->alphabits);
tga_write_pixel_to_mem( dst, tga_struct->orientation, i, line_width, &rgb[0]);
}
}
else
{
register uint16 l;
for( i = 0; i < line_width; )
{
packet_header = *src++;
if( packet_header & 0x80 )
{
for ( j = 0; j < bytes_per_pix; j++)
bgra[j] = *src++;
tga_convert_color( &bgra[0], &rgb[0], tga_struct->tga.img_spec_pix_depth, tga_struct->alphabits);
repcount = (packet_header & 0x7F) + 1;
/* write all the data out */
for( j = 0; j < repcount; j++ )
tga_write_pixel_to_mem( dst, tga_struct->orientation, i + j, line_width, &rgb[0]);
i += repcount;
}
else
{
repcount = ( packet_header & 0x7F) + 1;
for( l = 0; l < repcount; l++)
{
for ( j = 0; j < bytes_per_pix; j++)
bgra[j] = *src++;
tga_convert_color( &bgra[0], &rgb[0], tga_struct->tga.img_spec_pix_depth, tga_struct->alphabits);
tga_write_pixel_to_mem( dst, tga_struct->orientation, i + l, line_width, &rgb[0]);
}
i += repcount;
}
}
}
return( src);
}
/*==================================================================================*
* int16 unpack_line: *
* Call the "source's buffer to destination's buffer" and *
* "image to source's buffer" functions. *
*----------------------------------------------------------------------------------*
* input: *
* tga_struct -> tga_pic struct. with all the wanted information. *
* dst -> the destination buffer. *
*----------------------------------------------------------------------------------*
* return: *
* 1 if ok else 0. *
*==================================================================================*/
static int16 unpack_line( tga_pic *tga_struct, uint8 *dst)
{
uint8 *line_begin;
int32 read;
line_begin = tga_struct->img_buf + tga_struct->img_buf_offset;
read = ( int32)( unpack_line1( tga_struct, line_begin, dst, ( uint16)tga_struct->tga.img_spec_width) - line_begin);
if( fill_img_buf( tga_struct, read))
return ( 1);
else
return ( 0);
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
tga_pic *tga_struct = ( tga_pic*)info->_priv_ptr;
if( unpack_line( tga_struct, buffer))
return TRUE;
else
return FALSE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function mus be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
return;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
tga_pic *tga_struct = ( tga_pic*)info->_priv_ptr;
Fclose( tga_struct->handle);
free( tga_struct->img_buf);
free( ( void*)tga_struct);
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &tga_plugin);
return( 0);
}

View File

@@ -0,0 +1,13 @@
STACKSIZE = 64k
OPTIMISATION = -O2 -fomit-frame-pointer -finline-functions
CPU = -m68020-60
LIB = -ltiff -ljpeg -lz -lldgserver -lgcc
CFLAGS = $(CPU) $(OPTIMISATION) -Wall -I. -I../common
LDFLAGS = -nostdlib
OBJ = $(LDG_STARTUP_OBJ) tiffldg.o
PROGRAM = tiff.ldg
include ../../../common.mak

View File

@@ -0,0 +1,503 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
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as the successor of the GNU Library Public License, version 2, hence
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That's all there is to it!

View File

@@ -0,0 +1,422 @@
#include <tiffio.h>
#define HAVE_INTS_DEFINED
#include "zview.h"
#define alpha_composite( composite, fg, alpha) { \
uint16 temp = (( uint16)( fg) * ( uint16)( alpha) + ( uint16)128); \
( composite) = ( uint8)(( temp + ( temp >> 8)) >> 8); \
}
void CDECL init( void);
boolean CDECL reader_init( const char *name, IMGINFO info);
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata);
boolean CDECL reader_read( IMGINFO info, uint8 *buffer);
void CDECL reader_quit( IMGINFO info);
boolean CDECL encoder_init( const char *name, IMGINFO info);
boolean CDECL encoder_write( IMGINFO info, uint8 *buffer);
void CDECL encoder_quit( IMGINFO info);
void CDECL set_tiff_option( int16 set_quality, uint16 set_encode_compression);
PROC TIFFFunc[] =
{
{ "plugin_init", "", init},
{ "reader_init", "", reader_init},
{ "reader_get_txt", "", reader_get_txt},
{ "reader_read", "", reader_read},
{ "reader_quit", "", reader_quit},
{ "encoder_init", "", encoder_init},
{ "encoder_write", "", encoder_write},
{ "encoder_quit", "", encoder_quit},
{ "set_tiff_option","", set_tiff_option}
};
LDGLIB tiff_plugin =
{
0x0200, /* Plugin version */
9, /* Number of plugin's functions */
TIFFFunc, /* List of functions */
"TIFIFF", /* File's type Handled */
LDG_NOT_SHARED, /* The flags NOT_SHARED is used here.. even if zview plugins are reentrant
and are shareable, we must use this flags because we don't know if the
user has ldg.prg deamon installed on his computer */
NULL, /* Function called when the plugin is unloaded */
2L /* Howmany file type are supported by this plugin */
};
uint16 encode_compression = COMPRESSION_LZW;
int quality = 75;
/*==================================================================================*
* boolean CDECL reader_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the decoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_init( const char *name, IMGINFO info)
{
TIFF *tif;
uint32 w, h, *raster;
uint16 compression, bitpersample, samplesperpixel, planes;
if(( tif = TIFFOpen( name, "r")) == NULL)
{
return FALSE;
}
/*
do
{
info->page++;
}while( TIFFReadDirectory( tif));
*/
TIFFGetField( tif, TIFFTAG_IMAGEWIDTH, &w);
TIFFGetField( tif, TIFFTAG_IMAGELENGTH, &h);
TIFFGetField( tif, TIFFTAG_COMPRESSION, &compression);
TIFFGetField( tif, TIFFTAG_BITSPERSAMPLE, &bitpersample);
TIFFGetField( tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel);
planes = bitpersample * samplesperpixel;
info->width = ( uint16)w;
info->height = ( uint16)h;
info->components = 3;
info->planes = planes;
info->indexed_color = FALSE;
info->page = 1;
planes = MIN( 24, planes);
info->colors = ( uint32)( 1uL << planes);
info->real_width = info->width;
info->real_height = info->height;
info->memory_alloc = TT_RAM;
info->delay = 0;
info->orientation = UP_TO_DOWN;
info->num_comments = 0;
info->max_comments_length = 0;
strcpy( info->info, "Tag Image File Format - TIFF");
switch( compression)
{
case 1:
strcpy( info->compression, "None");
break;
case 2: /* CCITT modified Huffman RLE */
strcpy( info->compression, "HRLE");
break;
case 3: /* CCITT Group 3 fax encoding */
strcpy( info->compression, "FAX3");
break;
case 4: /* CCITT Group 4 fax encoding */
strcpy( info->compression, "FAX4");
break;
case 5: /* Lempel-Ziv & Welch */
strcpy( info->compression, "LZW");
break;
case 6: /* Old JPG, no supported ! */
TIFFClose( tif);
return FALSE;
case 7: /* JPEG DCT compression */
strcpy( info->compression, "JPEG");
break;
case 32766: /* NeXT 2-bit RLE */
strcpy( info->compression, "NeXT");
break;
case 32771: /* #1 w/ word alignment RLE*/
strcpy( info->compression, "RLEw");
break;
case 32773: /* Macintosh RLE */
strcpy( info->compression, "MAC");
break;
case 32809: /* ThunderScan RLE */
strcpy( info->compression, "Thun");
break;
case 32895: /* IT8 CT w/padding */
strcpy( info->compression, "IT8");
break;
case 32896: /* IT8 Linework RLE */
strcpy( info->compression, "IT8R");
break;
case 32897: /* IT8 Monochrome picture */
strcpy( info->compression, "IT8M");
break;
case 32898: /* IT8 Binary line art */
strcpy( info->compression, "IT8B");
break;
case 32908: /* Pixar companded 10/11bit LZW */
case 32909:
strcpy( info->compression, "Pixa");
break;
case 8:
case 32946: /* Deflate compression */
strcpy( info->compression, "Defl");
break;
case 32947: /* Kodak DCS encoding */
strcpy( info->compression, "DCS");
break;
case 34661: /* ISO JBIG */
strcpy( info->compression, "JBIG");
break;
case 34676: /* SGI Log Luminance RLE / 24bits*/
case 34677:
strcpy( info->compression, "SGI");
break;
case 34712: /* Leadtools JPEG2000 */
strcpy( info->compression, "JP20");
break;
default:
strcpy( info->compression, "???");
break;
}
raster = ( uint32*)malloc( ( w * h) << 2);
if( raster == NULL)
{
TIFFClose( tif);
return FALSE;
}
info->_priv_ptr = ( void*)raster;
info->_priv_ptr_more = ( void*)raster;
info->__priv_ptr_more = ( void*)tif;
if( TIFFReadRGBAImageOriented( tif, w, h, raster, ORIENTATION_TOPLEFT, 0))
return TRUE;
free( raster);
TIFFClose( tif);
return FALSE;
}
/*==================================================================================*
* boolean CDECL reader_read: *
* This function fits the buffer with image data *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The destination buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL reader_read( IMGINFO info, uint8 *buffer)
{
uint8 r = 0, g = 0, b = 0, a = 0;
uint16 i, j = 0;
uint32 *img = ( uint32*)info->_priv_ptr_more;
for( i = 0; i < info->width; i++)
{
a = TIFFGetA(img[i]);
r = TIFFGetR(img[i]);
g = TIFFGetG(img[i]);
b = TIFFGetB(img[i]);
alpha_composite( buffer[j++], r, a);
alpha_composite( buffer[j++], g, a);
alpha_composite( buffer[j++], b, a);
}
info->_priv_ptr_more = ( uint32*)info->_priv_ptr_more + info->width;
return TRUE;
}
/*==================================================================================*
* boolean CDECL reader_get_txt *
* This function , like other CDECL function must be always present. *
* It fills txtdata struct. with the text present in the picture ( if any). *
*----------------------------------------------------------------------------------*
* input: *
* txtdata -> The destination text buffer. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_get_txt( IMGINFO info, txt_data *txtdata)
{
return;
}
/*==================================================================================*
* boolean CDECL reader_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL reader_quit( IMGINFO info)
{
TIFF *tif = ( TIFF*)info->__priv_ptr_more;
free( ( uint32*)info->_priv_ptr);
TIFFClose( tif);
}
/*==================================================================================*
* boolean CDECL encoder_init: *
* Open the file "name", fit the "info" struct. ( see zview.h) and make others *
* things needed by the encoder. *
*----------------------------------------------------------------------------------*
* input: *
* name -> The file to open. *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL encoder_init( const char *name, IMGINFO info)
{
TIFF *tif;
if(( tif = TIFFOpen( name, "w")) == NULL)
{
return FALSE;
}
TIFFSetField( tif, TIFFTAG_IMAGEWIDTH, ( uint32)info->width);
TIFFSetField( tif, TIFFTAG_IMAGELENGTH, ( uint32)info->height);
TIFFSetField( tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField( tif, TIFFTAG_SAMPLESPERPIXEL, 3);
TIFFSetField( tif, TIFFTAG_BITSPERSAMPLE, 8);
TIFFSetField( tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField( tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
TIFFSetField( tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT);
TIFFSetField( tif, TIFFTAG_COMPRESSION, encode_compression);
if( encode_compression == COMPRESSION_JPEG)
{
TIFFSetField( tif, TIFFTAG_JPEGQUALITY, quality);
TIFFSetField( tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
}
TIFFSetField( tif, TIFFTAG_ROWSPERSTRIP, TIFFDefaultStripSize( tif, 0));
info->planes = 24;
info->colors = 16777215L;
info->orientation = UP_TO_DOWN;
info->memory_alloc = TT_RAM;
info->indexed_color = FALSE;
info->page = 1;
info->delay = 0;
info->_priv_ptr = ( void*)tif;
info->_priv_ptr_more = NULL;
info->__priv_ptr_more = NULL;
info->_priv_var = 0uL;
info->_priv_var_more = 0uL;
return TRUE;
}
/*==================================================================================*
* boolean CDECLencoder_write: *
* This function write data from buffer to file *
*----------------------------------------------------------------------------------*
* input: *
* buffer -> The source buffer. *
* info -> The IMGINFO struct . *
*----------------------------------------------------------------------------------*
* return: *
* TRUE if all ok else FALSE. *
*==================================================================================*/
boolean CDECL encoder_write( IMGINFO info, uint8 *buffer)
{
if ( TIFFWriteScanline( ( TIFF *)info->_priv_ptr, buffer, info->_priv_var++, 0) < 0)
return FALSE;
return TRUE;
}
/*==================================================================================*
* boolean CDECL encoder_quit: *
* This function makes the last job like close the file handler and free the *
* allocated memory. *
*----------------------------------------------------------------------------------*
* input: *
* info -> The IMGINFO struct. to fit. *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL encoder_quit( IMGINFO info)
{
TIFF *tif = ( TIFF*)info->_priv_ptr;
TIFFClose( tif);
}
/*==================================================================================*
* boolean set_tiff_option: *
* This function set some encoder's options *
*----------------------------------------------------------------------------------*
* input: *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL set_tiff_option( int16 set_quality, uint16 set_encode_compression)
{
encode_compression = set_encode_compression;
quality = set_quality;
}
/*==================================================================================*
* boolean CDECL init: *
* First function called from zview, in this one, you can make some internal *
* initialisation. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* -- *
*==================================================================================*/
void CDECL init( void)
{
}
/*==================================================================================*
* int main: *
* Main function, his job is to call ldg_init function. *
*----------------------------------------------------------------------------------*
* input: *
* -- *
*----------------------------------------------------------------------------------*
* return: *
* 0 *
*==================================================================================*/
int main( void)
{
ldg_init( &tiff_plugin);
return( 0);
}