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gpu.shaders: don't attempt to bind vertex attributes that don't exist in the compiled shader

release
Joe Groff 2010-01-28 21:48:41 -08:00
parent ce5cf520b3
commit e8dfc22073
1 changed files with 16 additions and 16 deletions
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32
extra/gpu/shaders/shaders.factor
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@ -128,6 +128,20 @@ TR: hyphens>underscores "-" "_" ;
[ gl-type vertex-attribute [ component-type>> ] [ dim>> ] bi feedback-type= ]
} 0&& [ vertex-attribute inaccurate-feedback-attribute-error ] unless ;
:: (bind-float-vertex-attribute) ( program-instance ptr name dim gl-type normalize? stride offset -- )
program-instance name attribute-index :> idx
idx 0 >= [
idx glEnableVertexAttribArray
idx dim gl-type normalize? stride offset ptr <displaced-alien> glVertexAttribPointer
] when ; inline
:: (bind-int-vertex-attribute) ( program-instance ptr name dim gl-type stride offset -- )
program-instance name attribute-index :> idx
idx 0 >= [
idx glEnableVertexAttribArray
idx dim gl-type stride offset ptr <displaced-alien> glVertexAttribIPointer
] when ; inline
:: [bind-vertex-attribute] ( stride offset vertex-attribute -- stride offset' quot )
vertex-attribute name>> hyphens>underscores :> name
vertex-attribute component-type>> :> type
@ -141,23 +155,9 @@ TR: hyphens>underscores "-" "_" ;
{ [ name not ] [ [ 2drop ] ] }
{
[ type unnormalized-integer-components? ]
[
{
name attribute-index [ glEnableVertexAttribArray ] keep
dim gl-type stride offset
} >quotation :> dip-block
{ dip-block dip <displaced-alien> glVertexAttribIPointer } >quotation
]
[ { name dim gl-type stride offset (bind-int-vertex-attribute) } >quotation ]
}
[
{
name attribute-index [ glEnableVertexAttribArray ] keep
dim gl-type normalize? stride offset
} >quotation :> dip-block
{ dip-block dip <displaced-alien> glVertexAttribPointer } >quotation
]
[ { name dim gl-type normalize? stride offset (bind-float-vertex-attribute) } >quotation ]
} cond ;
:: [bind-vertex-format] ( vertex-attributes -- quot )