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