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loading some tiff files works!

db4
Doug Coleman 2009-02-09 18:39:46 -06:00
parent c379497599
commit 3672bcb08f
2 changed files with 27 additions and 9 deletions
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6
extra/graphics/tiff/tiff.factor
View File

@ -14,6 +14,7 @@ the-answer
ifd-offset
ifds ;
CONSTRUCTOR: tiff ( -- tiff )
V{ } clone >>ifds ;
@ -327,8 +328,9 @@ ERROR: bad-small-ifd-type n ;
dup ifd-entries>>
[ process-ifd-entry [ class ] keep ] H{ } map>assoc >>processed-tags ;
: strips>buffer ( ifd -- ifd )
dup strips>> concat >>buffer ;
/*
: ifd-strips>buffer ( ifd -- ifd )
[
[ rows-per-strip find-tag n>> ]
[ image-length find-tag n>> ] bi
@ -342,7 +344,7 @@ ERROR: bad-small-ifd-type n ;
<tiff>
read-header [
read-ifds
dup ifds>> [ process-ifd read-strips drop ] each
dup ifds>> [ process-ifd read-strips strips>buffer drop ] each
] with-tiff-endianness
] with-file-reader ;

30
extra/graphics/viewer/viewer.factor
View File

@ -2,7 +2,7 @@
! See http://factorcode.org/license.txt for BSD license.
USING: accessors arrays combinators graphics.bitmap kernel math
math.functions namespaces opengl opengl.gl ui ui.gadgets
ui.gadgets.panes ui.render ;
ui.gadgets.panes ui.render graphics.tiff sequences ;
IN: graphics.viewer
TUPLE: graphics-gadget < gadget image ;
@ -21,6 +21,14 @@ M: graphics-gadget draw-gadget* ( gadget -- )
\ graphics-gadget new-gadget
swap >>image ;
: bits>gl-params ( n -- gl-bgr gl-format )
{
{ 32 [ GL_BGRA GL_UNSIGNED_BYTE ] }
{ 24 [ GL_BGR GL_UNSIGNED_BYTE ] }
{ 8 [ GL_BGR GL_UNSIGNED_BYTE ] }
{ 4 [ GL_BGR GL_UNSIGNED_BYTE ] }
} case ;
M: bitmap draw-image ( bitmap -- )
dup height>> 0 < [
0 0 glRasterPos2i
@ -32,12 +40,7 @@ M: bitmap draw-image ( bitmap -- )
[ width>> ] keep
[
[ height>> abs ] keep
bit-count>> {
{ 32 [ GL_BGRA GL_UNSIGNED_BYTE ] }
{ 24 [ GL_BGR GL_UNSIGNED_BYTE ] }
{ 8 [ GL_BGR GL_UNSIGNED_BYTE ] }
{ 4 [ GL_BGR GL_UNSIGNED_BYTE ] }
} case
bit-count>> bits>gl-params
] keep array>> glDrawPixels ;
M: bitmap width ( bitmap -- ) width>> ;
@ -48,3 +51,16 @@ M: bitmap height ( bitmap -- ) height>> ;
: bitmap-window ( path -- gadget )
load-bitmap <graphics-gadget> [ "bitmap" open-window ] keep ;
M: tiff width ( tiff -- ) ifds>> first image-width find-tag n>> ;
M: tiff height ( tiff -- ) ifds>> first image-length find-tag n>> ;
M: tiff draw-image ( tiff -- )
[ 0 0 glRasterPos2i 1.0 -1.0 glPixelZoom ] dip
ifds>> first
{
[ image-width find-tag n>> ]
[ image-length find-tag n>> ]
[ bits-per-sample find-tag n>> sum bits>gl-params ]
[ buffer>> ]
} cleave glDrawPixels ;