44 lines
2.0 KiB
Factor
44 lines
2.0 KiB
Factor
|
! Copyright (C) 2008 Joe Groff.
|
||
|
|
! See http://factorcode.org/license.txt for BSD license.
|
||
|
|
USING: opengl opengl.gl combinators continuations kernel
|
||
|
|
alien.c-types ;
|
||
|
|
IN: opengl.framebuffers
|
||
|
|
|
||
|
|
: gen-framebuffer ( -- id )
|
||
|
|
[ glGenFramebuffersEXT ] (gen-gl-object) ;
|
||
|
|
: gen-renderbuffer ( -- id )
|
||
|
|
[ glGenRenderbuffersEXT ] (gen-gl-object) ;
|
||
|
|
|
||
|
|
: delete-framebuffer ( id -- )
|
||
|
|
[ glDeleteFramebuffersEXT ] (delete-gl-object) ;
|
||
|
|
: delete-renderbuffer ( id -- )
|
||
|
|
[ glDeleteRenderbuffersEXT ] (delete-gl-object) ;
|
||
|
|
|
||
|
|
: framebuffer-incomplete? ( -- status/f )
|
||
|
|
GL_FRAMEBUFFER_EXT glCheckFramebufferStatusEXT
|
||
|
|
dup GL_FRAMEBUFFER_COMPLETE_EXT = f rot ? ;
|
||
|
|
|
||
|
|
: framebuffer-error ( status -- * )
|
||
|
|
{
|
||
|
|
{ GL_FRAMEBUFFER_COMPLETE_EXT [ "framebuffer complete" ] }
|
||
|
|
{ GL_FRAMEBUFFER_UNSUPPORTED_EXT [ "framebuffer configuration unsupported" ] }
|
||
|
|
{ GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT [ "framebuffer incomplete (incomplete attachment)" ] }
|
||
|
|
{ GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT [ "framebuffer incomplete (missing attachment)" ] }
|
||
|
|
{ GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT [ "framebuffer incomplete (dimension mismatch)" ] }
|
||
|
|
{ GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT [ "framebuffer incomplete (format mismatch)" ] }
|
||
|
|
{ GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT [ "framebuffer incomplete (draw buffer(s) have no attachment)" ] }
|
||
|
|
{ GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT [ "framebuffer incomplete (read buffer has no attachment)" ] }
|
||
|
|
[ drop gl-error "unknown framebuffer error" ]
|
||
|
|
} case throw ;
|
||
|
|
|
||
|
|
: check-framebuffer ( -- )
|
||
|
|
framebuffer-incomplete? [ framebuffer-error ] when* ;
|
||
|
|
|
||
|
|
: with-framebuffer ( id quot -- )
|
||
|
|
GL_FRAMEBUFFER_EXT rot glBindFramebufferEXT
|
||
|
|
[ GL_FRAMEBUFFER_EXT 0 glBindFramebufferEXT ] [ ] cleanup ; inline
|
||
|
|
|
||
|
|
: framebuffer-attachment ( attachment -- id )
|
||
|
|
GL_FRAMEBUFFER_EXT swap GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
|
||
|
|
0 <uint> [ glGetFramebufferAttachmentParameterivEXT ] keep *uint ;
|