-! (c)2009 Joe Groff bsd license
-USING: accessors alien alien.c-types arrays byte-arrays
-combinators destructors gpu kernel locals math opengl opengl.gl
-ui.gadgets.worlds variants ;
+! Copyright (C) 2009 Joe Groff.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors alien alien.c-types alien.data arrays byte-arrays
+combinators destructors gpu kernel math opengl opengl.gl
+typed ui.gadgets.worlds variants ;
IN: gpu.buffers
VARIANT: buffer-upload-pattern
VARIANT: buffer-kind
vertex-buffer index-buffer
- pixel-unpack-buffer pixel-pack-buffer ;
+ pixel-unpack-buffer pixel-pack-buffer
+ transform-feedback-buffer ;
-TUPLE: buffer < gpu-object
+TUPLE: buffer < gpu-object
{ upload-pattern buffer-upload-pattern }
{ usage-pattern buffer-usage-pattern }
{ kind buffer-kind } ;
{ index-buffer [ GL_ELEMENT_ARRAY_BUFFER ] }
{ pixel-unpack-buffer [ GL_PIXEL_UNPACK_BUFFER ] }
{ pixel-pack-buffer [ GL_PIXEL_PACK_BUFFER ] }
+ { transform-feedback-buffer [ GL_TRANSFORM_FEEDBACK_BUFFER ] }
} case ; inline
+: get-buffer-int ( target enum -- value )
+ 0 int <ref> [ glGetBufferParameteriv ] keep int deref ; inline
+
+: bind-buffer ( buffer -- target )
+ [ kind>> gl-target dup ] [ handle>> glBindBuffer ] bi ; inline
+
PRIVATE>
M: buffer dispose
[ [ delete-gl-buffer ] when* f ] change-handle drop ;
-TUPLE: buffer-ptr
+TUPLE: buffer-ptr
{ buffer buffer read-only }
{ offset integer read-only } ;
C: <buffer-ptr> buffer-ptr
+TUPLE: buffer-range < buffer-ptr
+ { size integer read-only } ;
+C: <buffer-range> buffer-range
+
UNION: gpu-data-ptr buffer-ptr c-ptr ;
-:: allocate-buffer ( buffer size initial-data -- )
- buffer kind>> gl-target :> target
- target buffer handle>> glBindBuffer
- target size initial-data buffer gl-buffer-usage glBufferData ;
+TYPED: buffer-size ( buffer: buffer -- size: integer )
+ bind-buffer GL_BUFFER_SIZE get-buffer-int ;
+
+: buffer-ptr>range ( buffer-ptr -- buffer-range )
+ [ buffer>> ] [ offset>> ] bi
+ 2dup [ buffer-size ] dip -
+ buffer-range boa ; inline
-: <buffer> ( upload usage kind size initial-data -- buffer )
+:: allocate-buffer ( buffer size initial-data -- )
+ buffer bind-buffer :> target
+ target size initial-data buffer gl-buffer-usage glBufferData ; inline
+
+: allocate-byte-array ( buffer byte-array -- )
+ [ byte-length ] [ ] bi allocate-buffer ; inline
+
+TYPED: <buffer> ( upload: buffer-upload-pattern
+ usage: buffer-usage-pattern
+ kind: buffer-kind
+ size: integer
+ initial-data
+ --
+ buffer: buffer )
[ [ gen-gl-buffer ] 3dip buffer boa dup ] 2dip allocate-buffer
window-resource ;
-: byte-array>buffer ( byte-array upload usage kind -- buffer )
+TYPED: byte-array>buffer ( byte-array
+ upload: buffer-upload-pattern
+ usage: buffer-usage-pattern
+ kind: buffer-kind
+ --
+ buffer: buffer )
[ ] 3curry dip
[ byte-length ] [ ] bi <buffer> ;
-:: update-buffer ( buffer-ptr size data -- )
+TYPED:: update-buffer ( buffer-ptr: buffer-ptr size: integer data -- )
buffer-ptr buffer>> :> buffer
- buffer kind>> gl-target :> target
- target buffer handle>> glBindBuffer
+ buffer bind-buffer :> target
target buffer-ptr offset>> size data glBufferSubData ;
-:: read-buffer ( buffer-ptr size -- data )
+TYPED:: read-buffer ( buffer-ptr: buffer-ptr size: integer -- data: byte-array )
buffer-ptr buffer>> :> buffer
- buffer kind>> gl-target :> target
+ buffer bind-buffer :> target
size <byte-array> :> data
- target buffer handle>> glBindBuffer
target buffer-ptr offset>> size data glGetBufferSubData
data ;
-:: copy-buffer ( to-buffer-ptr from-buffer-ptr size -- )
+TYPED:: copy-buffer ( to-buffer-ptr: buffer-ptr from-buffer-ptr: buffer-ptr size: integer -- )
GL_COPY_WRITE_BUFFER to-buffer-ptr buffer>> glBindBuffer
GL_COPY_READ_BUFFER from-buffer-ptr buffer>> glBindBuffer
from-buffer-ptr offset>> to-buffer-ptr offset>>
size glCopyBufferSubData ;
-:: with-mapped-buffer ( buffer access quot: ( alien -- ) -- )
- buffer kind>> gl-target :> target
+: (grow-buffer-size) ( target-size old-size -- new-size )
+ [ 2dup > ] [ 2 * ] while nip ; inline
+
+TYPED: grow-buffer ( buffer: buffer target-size: integer -- )
+ over buffer-size 2dup >
+ [ (grow-buffer-size) f allocate-buffer ] [ 3drop ] if ; inline
- target buffer handle>> glBindBuffer
+:: with-mapped-buffer ( ..a buffer access quot: ( ..a alien -- ..b ) -- ..b )
+ buffer bind-buffer :> target
target access gl-access glMapBuffer
quot call
- target glUnmapBuffer ; inline
+ target glUnmapBuffer drop ; inline
-:: with-bound-buffer ( buffer target quot: ( -- ) -- )
+:: with-mapped-buffer-array ( ..a buffer access c-type quot: ( ..a array -- ..b ) -- ..b )
+ buffer buffer-size c-type heap-size /i :> len
+ buffer access [ len c-type <c-direct-array> quot call ] with-mapped-buffer ; inline
+
+:: with-bound-buffer ( ..a buffer target quot: ( ..a -- ..b ) -- ..b )
target gl-target buffer glBindBuffer
quot call ; inline
-: with-buffer-ptr ( buffer-ptr target quot: ( c-ptr -- ) -- )
+: with-buffer-ptr ( ..a buffer-ptr target quot: ( ..a c-ptr -- ..b ) -- ..b )
[ [ offset>> <alien> ] [ buffer>> handle>> ] bi ] 2dip
with-bound-buffer ; inline
-: with-gpu-data-ptr ( gpu-data-ptr target quot: ( c-ptr -- ) -- )
+: with-gpu-data-ptr ( ..a gpu-data-ptr target quot: ( ..a c-ptr -- ..b ) -- ..b )
pick buffer-ptr?
[ with-buffer-ptr ]
[ [ gl-target 0 glBindBuffer ] dip call ] if ; inline
-
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