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better warnings on unsupported bmp formats

db4
Doug Coleman 2009-02-06 17:31:03 -06:00
parent 89c0dd21dd
commit 4cd8bba92e
2 changed files with 8 additions and 7 deletions
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3
extra/graphics/bitmap/bitmap-tests.factor
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@ -8,6 +8,9 @@ IN: graphics.bitmap.tests
: test-bitmap24 ( -- path )
"resource:extra/graphics/bitmap/test-images/thiswayup24.bmp" ;
: test-bitmap16 ( -- path )
"resource:extra/graphics/bitmap/test-images/rgb16bit.bmp" ;
: test-bitmap8 ( -- path )
"resource:extra/graphics/bitmap/test-images/rgb8bit.bmp" ;

12
extra/graphics/bitmap/bitmap.factor
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@ -39,20 +39,18 @@ MACRO: (nbits>bitmap) ( bits -- )
[ rgb-quads>> 4 <sliced-groups> [ 3 head-slice ] map ]
[ color-index>> >array ] bi [ swap nth ] with map concat ;
: 4bit>array ( bitmap -- array )
[ rgb-quads>> 4 <sliced-groups> [ 3 head-slice ] map ]
[ color-index>> >array ] bi [ swap nth ] with map concat ;
ERROR: bmp-not-supported n ;
: raw-bitmap>array ( bitmap -- array )
dup bit-count>>
{
{ 32 [ color-index>> ] }
{ 24 [ color-index>> ] }
{ 16 [ "16bit" throw ] }
{ 16 [ bmp-not-supported ] }
{ 8 [ 8bit>array ] }
{ 4 [ 4bit>array ] }
{ 2 [ "2bit" throw ] }
{ 1 [ "1bit" throw ] }
{ 4 [ bmp-not-supported ] }
{ 2 [ bmp-not-supported ] }
{ 1 [ bmp-not-supported ] }
} case >byte-array ;
ERROR: bitmap-magic ;