1 ! Copyright (C) 2010 Doug Coleman.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors alien alien.data alien.parser alien.strings
4 alien.syntax arrays assocs byte-arrays classes.struct
5 combinators continuations cuda.ffi cuda.memory cuda.utils
6 destructors fry init io io.backend io.encodings.string
7 io.encodings.utf8 kernel lexer locals macros math math.parser
8 namespaces nested-comments opengl.gl.extensions parser
9 prettyprint quotations sequences words ;
10 QUALIFIED-WITH: alien.c-types a
14 { device integer initial: 0 }
15 { device-flags initial: 0 } ;
17 : <launcher> ( device-id -- launcher )
19 swap >>device ; inline
21 TUPLE: function-launcher
22 dim-block dim-grid shared-size stream ;
24 : with-cuda-context ( flags device quot -- )
25 H{ } clone cuda-modules set-global
26 H{ } clone cuda-functions set
27 [ create-context ] dip
29 [ drop '[ _ destroy-context ] ] 2bi
32 : with-cuda-program ( flags device quot -- )
33 [ dup cuda-device set ] 2dip
34 '[ cuda-context set _ call ] with-cuda-context ; inline
36 : with-cuda ( launcher quot -- )
38 [ H{ } clone cuda-memory-hashtable ] 2dip '[
41 [ [ device>> ] [ device-flags>> ] bi ] bi
43 ] with-variable ; inline
45 : c-type>cuda-setter ( c-type -- n cuda-type )
47 { [ dup a:int = ] [ drop 4 [ cuda-int* ] ] }
48 { [ dup a:uint = ] [ drop 4 [ cuda-int* ] ] }
49 { [ dup a:float = ] [ drop 4 [ cuda-float* ] ] }
50 { [ dup a:pointer? ] [ drop 4 [ ptr>> cuda-int* ] ] }
51 { [ dup a:void* = ] [ drop 4 [ ptr>> cuda-int* ] ] }
54 : run-function-launcher ( function-launcher function -- )
57 [ dim-block>> first3 function-block-shape* ]
58 [ shared-size>> function-shared-size* ]
63 first2 launch-function-grid*
68 : cuda-argument-setter ( offset c-type -- offset' quot )
70 [ over [ + ] dip ] dip
71 '[ swap _ swap _ call ] ;
73 MACRO: cuda-arguments ( c-types -- quot: ( args... function -- ) )
74 [ 0 ] dip [ cuda-argument-setter ] map reverse
75 swap '[ _ param-size* ] suffix
78 : define-cuda-word ( word module-name function-name arguments -- )
82 [ nip _ cuda-arguments ]
83 [ run-function-launcher ] 2bi
86 [ 2nip \ function-launcher suffix a:void function-effect ]
89 [ init-cuda ] "cuda-init" add-startup-hook