! Portions copyright (C) 2007 Eduardo Cavazos.
! Portions copyright (C) 2008 Joe Groff.
! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.c-types continuations kernel libc math macros
-namespaces math.vectors math.parser opengl.gl opengl.glu combinators
-combinators.smart arrays sequences splitting words byte-arrays assocs
-colors colors.constants accessors generalizations locals fry
-specialized-arrays.float specialized-arrays.uint ;
+USING: alien alien.c-types alien.data ascii calendar
+combinators.short-circuit continuations kernel libc math macros
+namespaces math.vectors math.parser opengl.gl combinators
+combinators.smart arrays sequences splitting words byte-arrays
+assocs vocabs colors colors.constants accessors generalizations
+sequences.generalizations locals fry specialized-arrays ;
+FROM: alien.c-types => float ;
+SPECIALIZED-ARRAY: float
+SPECIALIZED-ARRAY: uint
IN: opengl
: gl-color ( color -- ) >rgba-components glColor4d ; inline
: gl-clear ( color -- )
gl-clear-color GL_COLOR_BUFFER_BIT glClear ;
+: error>string ( n -- string )
+ H{
+ { HEX: 0 "No error" }
+ { HEX: 0501 "Invalid value" }
+ { HEX: 0500 "Invalid enumerant" }
+ { HEX: 0502 "Invalid operation" }
+ { HEX: 0503 "Stack overflow" }
+ { HEX: 0504 "Stack underflow" }
+ { HEX: 0505 "Out of memory" }
+ { HEX: 0506 "Invalid framebuffer operation" }
+ } at "Unknown error" or ;
+
+TUPLE: gl-error function code string ;
+
+: <gl-error> ( function code -- gl-error )
+ dup error>string \ gl-error boa ; inline
+
+: gl-error-code ( -- code/f )
+ glGetError dup 0 = [ drop f ] when ; inline
+
+: (gl-error) ( function -- )
+ gl-error-code [ <gl-error> throw ] [ drop ] if* ;
+
: gl-error ( -- )
- glGetError dup zero? [
- "GL error: " over gluErrorString append throw
- ] unless drop ;
+ f (gl-error) ; inline
: do-enabled ( what quot -- )
over glEnable dip glDisable ; inline
[ ?execute ] map ;
: (all-enabled) ( seq quot -- )
- over [ glEnable ] each dip [ glDisable ] each ; inline
+ [ dup [ glEnable ] each ] dip
+ dip
+ [ glDisable ] each ; inline
: (all-enabled-client-state) ( seq quot -- )
[ dup [ glEnableClientState ] each ] dip
#! We use GL_LINE_STRIP with a duplicated first vertex
#! instead of GL_LINE_LOOP to work around a bug in Apple's
#! X3100 driver.
- loc first2 :> y :> x
- dim first2 :> h :> w
+ loc first2 :> ( x y )
+ dim first2 :> ( w h )
[
x 0.5 + y 0.5 +
x w + 0.3 - y 0.5 +
rect-vertices (gl-rect) ;
:: (fill-rect-vertices) ( loc dim -- vertices )
- loc first2 :> y :> x
- dim first2 :> h :> w
+ loc first2 :> ( x y )
+ dim first2 :> ( w h )
[
x y
x w + y
swap glPushAttrib call glPopAttrib ; inline
: (gen-gl-object) ( quot -- id )
- [ 1 0 <uint> ] dip keep *uint ; inline
-
-: gen-gl-buffer ( -- id )
- [ glGenBuffers ] (gen-gl-object) ;
+ [ 1 { uint } ] dip [ ] with-out-parameters ; inline
: (delete-gl-object) ( id quot -- )
[ 1 swap <uint> ] dip call ; inline
+: gen-gl-buffer ( -- id )
+ [ glGenBuffers ] (gen-gl-object) ;
+
: delete-gl-buffer ( id -- )
[ glDeleteBuffers ] (delete-gl-object) ;
GL_ARRAY_BUFFER swap _ with-gl-buffer
] with-gl-buffer ; inline
+: gen-vertex-array ( -- id )
+ [ glGenVertexArrays ] (gen-gl-object) ;
+
+: delete-vertex-array ( id -- )
+ [ glDeleteVertexArrays ] (delete-gl-object) ;
+
+:: with-vertex-array ( id quot -- )
+ id glBindVertexArray
+ quot [ 0 glBindVertexArray ] [ ] cleanup ; inline
+
: <gl-buffer> ( target data hint -- id )
pick gen-gl-buffer [
[
MACRO: set-draw-buffers ( buffers -- )
words>values '[ _ (set-draw-buffers) ] ;
-: gl-look-at ( eye focus up -- )
- [ first3 ] tri@ gluLookAt ;
-
: gen-dlist ( -- id ) 1 glGenLists ;
: make-dlist ( type quot -- id )
GL_PROJECTION glMatrixMode
glLoadIdentity
GL_MODELVIEW glMatrixMode
- glLoadIdentity ;
\ No newline at end of file
+ glLoadIdentity ;