1 ! Copyright (C) 2008 Joe Groff.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: opengl opengl.gl combinators continuations kernel
4 alien.c-types alien.data ;
5 IN: opengl.framebuffers
7 : gen-framebuffer ( -- id )
8 [ glGenFramebuffers ] (gen-gl-object) ;
9 : gen-renderbuffer ( -- id )
10 [ glGenRenderbuffers ] (gen-gl-object) ;
12 : delete-framebuffer ( id -- )
13 [ glDeleteFramebuffers ] (delete-gl-object) ;
14 : delete-renderbuffer ( id -- )
15 [ glDeleteRenderbuffers ] (delete-gl-object) ;
17 : framebuffer-incomplete? ( -- status/f )
18 GL_DRAW_FRAMEBUFFER glCheckFramebufferStatus
19 dup GL_FRAMEBUFFER_COMPLETE = f rot ? ;
21 : framebuffer-error ( status -- * )
23 { GL_FRAMEBUFFER_COMPLETE [ "framebuffer complete" ] }
24 { GL_FRAMEBUFFER_UNSUPPORTED [ "framebuffer configuration unsupported" ] }
25 { GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT [ "framebuffer incomplete (incomplete attachment)" ] }
26 { GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT [ "framebuffer incomplete (missing attachment)" ] }
27 { GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT [ "framebuffer incomplete (dimension mismatch)" ] }
28 { GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT [ "framebuffer incomplete (format mismatch)" ] }
29 { GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER [ "framebuffer incomplete (draw buffer(s) have no attachment)" ] }
30 { GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER [ "framebuffer incomplete (read buffer has no attachment)" ] }
31 { GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE [ "framebuffer incomplete (multisample counts don't match)" ] }
32 [ drop gl-error "unknown framebuffer error" ]
35 : check-framebuffer ( -- )
36 framebuffer-incomplete? [ framebuffer-error ] when* ;
38 : with-framebuffer ( id quot -- )
39 [ GL_DRAW_FRAMEBUFFER swap glBindFramebuffer ] dip
40 [ GL_DRAW_FRAMEBUFFER 0 glBindFramebuffer ] [ ] cleanup ; inline
42 : with-draw-read-framebuffers ( draw-id read-id quot -- )
44 [ GL_DRAW_FRAMEBUFFER swap glBindFramebuffer ]
45 [ GL_READ_FRAMEBUFFER swap glBindFramebuffer ] bi*
48 GL_DRAW_FRAMEBUFFER 0 glBindFramebuffer
49 GL_READ_FRAMEBUFFER 0 glBindFramebuffer
50 ] [ ] cleanup ; inline
52 : framebuffer-attachment ( attachment -- id )
53 GL_FRAMEBUFFER swap GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
54 { uint } [ glGetFramebufferAttachmentParameteriv ] with-out-parameters ;