static int cell_draw( char *name,
char *mapset,
struct Colors *colors,
RASTER_MAP_TYPE data_type,
char *format )
{
int cellfile;
void *xarray;
int row;
int ncols, nrows;
static unsigned char *red, *grn, *blu, *set;
int i;
void *ptr;
int big_endian;
long one = 1;
FILE *fo;
int raster_size;
big_endian = !( *(( char * )( &one ) ) );
ncols = G_window_cols();
nrows = G_window_rows();
/* Make sure map is available */
if (( cellfile = G_open_cell_old( name, mapset ) ) == -1 )
G_fatal_error(( "Unable to open raster map <%s>" ), name );
/* Allocate space for cell buffer */
xarray = G_allocate_raster_buf( data_type );
red = G_malloc( ncols );
grn = G_malloc( ncols );
blu = G_malloc( ncols );
set = G_malloc( ncols );
/* some buggy C libraries require BOTH setmode() and fdopen(bin) */
#ifdef WIN32
if ( _setmode( _fileno( stdout ), _O_BINARY ) == -1 )
G_fatal_error( "Cannot set stdout mode" );
#endif
// Unfortunately this is not sufficient on Windows to switch stdout to binary mode
fo = fdopen( fileno( stdout ), "wb" );
raster_size = G_raster_size( data_type );
//fprintf( fo, "%d %d", data_type, raster_size );
//exit(0);
/* loop for array rows */
for ( row = 0; row < nrows; row++ )
{
G_get_raster_row( cellfile, xarray, row, data_type );
ptr = xarray;
G_lookup_raster_colors( xarray, red, grn, blu, set, ncols, colors,
data_type );
for ( i = 0; i < ncols; i++ )
{
unsigned char alpha = 255;
//G_debug ( 0, "row = %d col = %d", row, i );
if ( G_is_null_value( ptr, data_type ) )
{
alpha = 0;
}
if ( strcmp( format, "color" ) == 0 )
{
// We need data suitable for QImage 32-bpp
// the data are stored in QImage as QRgb which is unsigned int.
// Because it depends on byte order of the platform we have to
// consider byte order (well, middle endian ignored)
if ( big_endian )
{
// I have never tested this
fprintf( fo, "%c%c%c%c", alpha, red[i], grn[i], blu[i] );
}
else
{
fprintf( fo, "%c%c%c%c", blu[i], grn[i], red[i], alpha );
}
}
else
{
if ( data_type == CELL_TYPE )
{
//G_debug ( 0, "valx = %d", *((CELL *) ptr));
}
if ( G_is_null_value( ptr, data_type ) )
{
if ( data_type == CELL_TYPE )
{
int nul = -2147483647;
fwrite( &nul , 4, 1, fo );
}
else if ( data_type == DCELL_TYPE )
{
double nul = 2.2250738585072014e-308;
fwrite( &nul , 8, 1, fo );
}
else if ( data_type == FCELL_TYPE )
{
double nul = 1.17549435e-38F;
fwrite( &nul , 4, 1, fo );
}
}
else
{
fwrite( ptr, raster_size, 1, fo );
}
}
ptr = G_incr_void_ptr( ptr, raster_size );
}
}
G_close_cell( cellfile );
return ( 0 );
}
static int cell_draw( char *name,
char *mapset,
struct Colors *colors,
RASTER_MAP_TYPE data_type,
char *format )
{
int cellfile;
void *xarray = 0;
int row;
int ncols, nrows;
static unsigned char *red, *grn, *blu, *set;
int i;
void *ptr = 0;
int big_endian;
long one = 1;
FILE *fo = 0;
size_t raster_size;
#ifdef NAN
double dnul = NAN;
float fnul = ( float )( NAN );
#else
double dnul = strtod( "NAN", 0 );
float fnul = strtof( "NAN", 0 );
// another possibility would be nan()/nanf() - C99
// and 0./0. if all fails
#endif
assert( dnul != dnul );
assert( fnul != fnul );
big_endian = !( *( ( char * )( &one ) ) );
ncols = G_window_cols();
nrows = G_window_rows();
/* Make sure map is available */
if ( ( cellfile = G_open_cell_old( name, mapset ) ) == -1 )
G_fatal_error( ( "Unable to open raster map <%s>" ), name );
/* Allocate space for cell buffer */
xarray = G_allocate_raster_buf( data_type );
red = G_malloc( ncols );
grn = G_malloc( ncols );
blu = G_malloc( ncols );
set = G_malloc( ncols );
/* some buggy C libraries require BOTH setmode() and fdopen(bin) */
// Do not use Q_OS_WIN, we are in C file, no Qt headers
#ifdef WIN32
if ( _setmode( _fileno( stdout ), _O_BINARY ) == -1 )
G_fatal_error( "Cannot set stdout mode" );
#endif
// Unfortunately this is not sufficient on Windows to switch stdout to binary mode
fo = fdopen( fileno( stdout ), "wb" );
raster_size = G_raster_size( data_type );
//fprintf( fo, "%d %d", data_type, raster_size );
//exit(0);
/* loop for array rows */
for ( row = 0; row < nrows; row++ )
{
G_get_raster_row( cellfile, xarray, row, data_type );
ptr = xarray;
G_lookup_raster_colors( xarray, red, grn, blu, set, ncols, colors,
data_type );
for ( i = 0; i < ncols; i++ )
{
unsigned char alpha = 255;
//G_debug ( 0, "row = %d col = %d", row, i );
if ( G_is_null_value( ptr, data_type ) )
{
alpha = 0;
}
if ( strcmp( format, "color" ) == 0 )
{
// We need data suitable for QImage 32-bpp
// the data are stored in QImage as QRgb which is unsigned int.
// Because it depends on byte order of the platform we have to
// consider byte order (well, middle endian ignored)
if ( big_endian )
{
// I have never tested this
fprintf( fo, "%c%c%c%c", alpha, red[i], grn[i], blu[i] );
}
else
{
fprintf( fo, "%c%c%c%c", blu[i], grn[i], red[i], alpha );
}
}
else
{
if ( data_type == CELL_TYPE )
{
//G_debug ( 0, "valx = %d", *((CELL *) ptr));
}
if ( G_is_null_value( ptr, data_type ) )
{
// see comments in QgsGrassRasterProvider::noDataValue()
if ( data_type == CELL_TYPE )
{
//int nul = -2000000000;
int nul = INT_MIN;
fwrite( &nul, 4, 1, fo );
}
else if ( data_type == DCELL_TYPE )
{
//double nul = -1e+300;
fwrite( &dnul, 8, 1, fo );
}
else if ( data_type == FCELL_TYPE )
{
//double nul = -1e+30;
fwrite( &fnul, 4, 1, fo );
}
}
else
{
fwrite( ptr, raster_size, 1, fo );
}
}
ptr = G_incr_void_ptr( ptr, raster_size );
}
}
G_close_cell( cellfile );
fclose( fo );
return ( 0 );
}
