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fix against older orcs

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oops, older orcs don't have those limit constants
This commit is contained in:
John Cupitt 2015-12-08 15:16:52 +00:00
parent a0ead35bbb
commit 06a627fc51
1 changed files with 7 additions and 3 deletions
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10
libvips/iofuncs/vector.c
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@ -339,22 +339,26 @@ vips_vector_temporary( VipsVector *vector, char *name, int size )
gboolean
vips_vector_full( VipsVector *vector )
{
/* Many orcs don't have ORC_MAX_CONST_VARS etc., stick to our own
* constants for now.
*/
/* We can need a max of 2 constants plus one source per
* coefficient, so stop if we're sure we don't have enough.
*/
if( vector->n_constant > ORC_MAX_CONST_VARS - 2 )
if( vector->n_constant + 2 > 8 )
return( TRUE );
/* You can have 8 parameters, and d1 counts as one of them, so +1
* there.
*/
if( vector->n_source + vector->n_scanline + 1 > ORC_MAX_PARAM_VARS )
if( vector->n_source + vector->n_scanline + 1 > 7 )
return( TRUE );
/* After signalling full, some operations will add up to 4 more
* instructions as they finish up. Leave a margin.
*/
if( vector->n_instruction + 10 > ORC_N_INSNS )
if( vector->n_instruction + 10 > 50 )
return( TRUE );
return( FALSE );