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im_rot*() gtkdoc

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This commit is contained in:
John Cupitt 2010-02-01 17:33:14 +00:00
parent e79555000b
commit f4fd407740
3 changed files with 63 additions and 77 deletions
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48
libvips/conversion/im_rot180.c
View File

@ -1,10 +1,5 @@
/* @(#) rotates an image 180 degrees
* @(#) Usage:
* @(#) im_rot180(in, out)
* @(#) IMAGE *in, *out;
* @(#)
* @(#) Returns 0 on sucess and -1 on error
* @(#)
/* im_rot180
*
* Copyright: 1991, N. Dessipris
* Written on: 28/10/91
* Updated on: 2/4/92, J.Cupitt
@ -25,6 +20,9 @@
* - sets Xoffset / Yoffset
* 24/3/09
* - added IM_CODING_RAD support
* 1/2/10
* - cleanups
* - gtkdoc
*/
/*
@ -68,8 +66,6 @@
#include <dmalloc.h>
#endif /*WITH_DMALLOC*/
/* Rotate a small piece.
*/
static int
rot180_gen( REGION *or, void *seq, void *a, void *b )
{
@ -130,30 +126,28 @@ rot180_gen( REGION *or, void *seq, void *a, void *b )
return( 0 );
}
/**
* im_rot180:
* @in: input image
* @out: output image
*
* Rotate an image 180 degrees.
*
* See also: im_rot90(), im_rot270(), im_affinei_all().
*
* Returns: 0 on success, -1 on error
*/
int
im_rot180( IMAGE *in, IMAGE *out )
{
/* Make output image.
*/
if( im_piocheck( in, out ) )
return( -1 );
if( in->Coding != IM_CODING_NONE &&
in->Coding != IM_CODING_LABQ &&
in->Coding != IM_CODING_RAD ) {
im_error( "im_rot180", "%s",
_( "Coding should be NONE, LABQ or RAD" ) );
return( -1 );
}
if( im_cp_desc( out, in ) )
{
if( im_piocheck( in, out ) ||
im_check_coding_known( "im_rot180", in ) )
return( -1 );
/* We are fastest with thinstrip.
*/
if( im_demand_hint( out, IM_THINSTRIP, in, NULL ) )
if( im_cp_desc( out, in ) ||
im_demand_hint( out, IM_THINSTRIP, in, NULL ) )
return( -1 );
/* Generate!
*/
if( im_generate( out,
im_start_one, rot180_gen, im_stop_one, in, NULL ) )
return( -1 );

46
libvips/conversion/im_rot270.c
View File

@ -1,10 +1,5 @@
/* @(#) rotates an image 270 degrees
* @(#) Usage:
* @(#) im_rot270(in, out)
* @(#) IMAGE *in, *out;
* @(#)
* @(#) Returns 0 on sucess and -1 on error
* @(#)
/* im_rot270
*
* Copyright: 1991, N. Dessipris
* Written on: 28/10/91
* Updated on: 2/4/92, J.Cupitt
@ -26,6 +21,9 @@
* - sets Xoffset / Yoffset
* 24/3/09
* - added IM_CODING_RAD support
* 1/2/10
* - cleanups
* - gtkdoc
*/
/*
@ -132,32 +130,30 @@ rot270_gen( REGION *or, void *seq, void *a, void *b )
return( 0 );
}
/**
* im_rot270:
* @in: input image
* @out: output image
*
* Rotate an image 270 degrees.
*
* See also: im_rot180(), im_rot90(), im_affinei_all().
*
* Returns: 0 on success, -1 on error
*/
int
im_rot270( IMAGE *in, IMAGE *out )
{
/* Make output image.
*/
if( im_piocheck( in, out ) )
if( im_piocheck( in, out ) ||
im_check_coding_known( "im_rot270", in ) )
return( -1 );
if( in->Coding != IM_CODING_NONE &&
in->Coding != IM_CODING_LABQ &&
in->Coding != IM_CODING_RAD ) {
im_error( "im_rot270", "%s",
_( "Coding should be NONE, LABQ or RAD" ) );
return( -1 );
}
if( im_cp_desc( out, in ) )
if( im_cp_desc( out, in ) ||
im_demand_hint( out, IM_SMALLTILE, in, NULL ) )
return( -1 );
out->Xsize = in->Ysize;
out->Ysize = in->Xsize;
/* We want smalltile if possible.
*/
if( im_demand_hint( out, IM_SMALLTILE, in, NULL ) )
return( -1 );
/* Generate!
*/
if( im_generate( out,
im_start_one, rot270_gen, im_stop_one, in, NULL ) )
return( -1 );

46
libvips/conversion/im_rot90.c
View File

@ -1,10 +1,5 @@
/* @(#) rotates an image 90 degrees
* @(#) Usage:
* @(#) im_rot90(in, out)
* @(#) IMAGE *in, *out;
* @(#)
* @(#) Returns 0 on sucess and -1 on error
* @(#)
/* im_rot90
*
* Copyright: 1991, N. Dessipris
* Written on: 28/10/91
* Updated on: 2/4/92, J.Cupitt
@ -26,6 +21,9 @@
* - sets Xoffset / Yoffset
* 24/3/09
* - added IM_CODING_RAD support
* 1/2/10
* - cleanups
* - gtkdoc
*/
/*
@ -132,32 +130,30 @@ rot90_gen( REGION *or, void *seq, void *a, void *b )
return( 0 );
}
/**
* im_rot90:
* @in: input image
* @out: output image
*
* Rotate an image 90 degrees.
*
* See also: im_rot180(), im_rot270(), im_affinei_all().
*
* Returns: 0 on success, -1 on error
*/
int
im_rot90( IMAGE *in, IMAGE *out )
{
/* Make output image.
*/
if( im_piocheck( in, out ) )
if( im_piocheck( in, out ) ||
im_check_coding_known( "im_rot90", in ) )
return( -1 );
if( in->Coding != IM_CODING_NONE &&
in->Coding != IM_CODING_LABQ &&
in->Coding != IM_CODING_RAD ) {
im_error( "im_rot90", "%s",
_( "Coding should be NONE, LABQ or RAD" ) );
return( -1 );
}
if( im_cp_desc( out, in ) )
if( im_cp_desc( out, in ) ||
im_demand_hint( out, IM_SMALLTILE, in, NULL ) )
return( -1 );
out->Xsize = in->Ysize;
out->Ysize = in->Xsize;
/* We want smalltile if possible.
*/
if( im_demand_hint( out, IM_SMALLTILE, in, NULL ) )
return( -1 );
/* Generate!
*/
if( im_generate( out,
im_start_one, rot90_gen, im_stop_one, in, NULL ) )
return( -1 );