1 ! (c)2009 Joe Groff bsd license
2 USING: accessors alien.c-types alien.data arrays byte-arrays
3 combinators destructors gpu gpu.buffers gpu.private gpu.textures
4 gpu.textures.private images kernel locals math math.rectangles
5 opengl opengl.framebuffers opengl.gl opengl.textures sequences
6 specialized-arrays typed ui.gadgets.worlds variants ;
8 SPECIALIZED-ARRAY: uint
11 SINGLETON: system-framebuffer
13 TUPLE: renderbuffer < gpu-object
14 { component-order component-order initial: RGBA }
15 { component-type component-type initial: ubyte-components }
16 { samples integer initial: 0 } ;
20 : get-framebuffer-int ( enum -- value )
21 GL_RENDERBUFFER swap 0 int <ref>
22 [ glGetRenderbufferParameteriv ] keep int deref ;
26 TYPED:: allocate-renderbuffer ( renderbuffer: renderbuffer dim -- )
27 GL_RENDERBUFFER renderbuffer handle>> glBindRenderbuffer
29 renderbuffer samples>> dup zero?
30 [ drop renderbuffer texture-gl-internal-format dim first2 glRenderbufferStorage ]
31 [ renderbuffer texture-gl-internal-format dim first2 glRenderbufferStorageMultisample ]
34 TYPED:: renderbuffer-dim ( renderbuffer: renderbuffer -- dim: array )
35 GL_RENDERBUFFER renderbuffer handle>> glBindRenderbuffer
36 GL_RENDERBUFFER_WIDTH get-framebuffer-int
37 GL_RENDERBUFFER_HEIGHT get-framebuffer-int 2array ;
39 TYPED: <renderbuffer> ( component-order: component-order
40 component-type: component-type
45 [ [ gen-renderbuffer ] 3dip renderbuffer boa dup ] dip
46 [ allocate-renderbuffer ] [ drop ] if*
49 M: renderbuffer dispose
50 [ [ delete-renderbuffer ] when* f ] change-handle drop ;
52 TUPLE: texture-1d-attachment
53 { texture texture-1d-data-target read-only initial: T{ texture-1d } }
54 { level integer read-only } ;
56 C: <texture-1d-attachment> texture-1d-attachment
58 TUPLE: texture-2d-attachment
59 { texture texture-2d-data-target read-only initial: T{ texture-2d } }
60 { level integer read-only } ;
62 C: <texture-2d-attachment> texture-2d-attachment
64 TUPLE: texture-3d-attachment
65 { texture texture-3d read-only initial: T{ texture-3d } }
66 { z-offset integer read-only }
67 { level integer read-only } ;
69 C: <texture-3d-attachment> texture-3d-attachment
71 TUPLE: texture-layer-attachment
72 { texture texture-3d-data-target read-only initial: T{ texture-3d } }
73 { layer integer read-only }
74 { level integer read-only } ;
76 C: <texture-layer-attachment> texture-layer-attachment
78 UNION: texture-attachment
79 texture-1d-attachment texture-2d-attachment texture-3d-attachment texture-layer-attachment ;
81 M: texture-attachment dispose texture>> dispose ;
83 UNION: framebuffer-attachment renderbuffer texture-attachment ;
85 GENERIC: attachment-object ( attachment -- object )
86 M: renderbuffer attachment-object ;
87 M: texture-attachment attachment-object texture>> texture-object ;
89 TUPLE: framebuffer < gpu-object
90 { color-attachments array read-only }
91 { depth-attachment maybe{ framebuffer-attachment } read-only initial: f }
92 { stencil-attachment maybe{ framebuffer-attachment } read-only initial: f } ;
94 UNION: any-framebuffer system-framebuffer framebuffer ;
96 VARIANT: framebuffer-attachment-side
97 left-side right-side ;
99 VARIANT: framebuffer-attachment-face
100 back-face front-face ;
102 VARIANT: color-attachment-ref
105 { side maybe{ framebuffer-attachment-side } initial: f }
106 { face maybe{ framebuffer-attachment-face } initial: back-face }
108 color-attachment: { { index integer } } ;
110 VARIANT: non-color-attachment-ref
114 UNION: attachment-ref
116 non-color-attachment-ref
119 TUPLE: framebuffer-rect
120 { framebuffer any-framebuffer read-only initial: system-framebuffer }
121 { attachment color-attachment-ref read-only initial: default-attachment }
122 { rect rect read-only } ;
124 C: <framebuffer-rect> framebuffer-rect
126 TYPED: framebuffer-attachment-at ( framebuffer: framebuffer
127 attachment-ref: attachment-ref
129 attachment: framebuffer-attachment )
131 { default-attachment [ color-attachments>> first ] }
132 { color-attachment [ swap color-attachments>> nth ] }
133 { depth-attachment [ depth-attachment>> ] }
134 { stencil-attachment [ stencil-attachment>> ] }
139 GENERIC: framebuffer-handle ( framebuffer -- handle )
141 M: system-framebuffer framebuffer-handle drop 0 ;
142 M: framebuffer framebuffer-handle handle>> ;
144 GENERIC# allocate-framebuffer-attachment 1 ( framebuffer-attachment dim -- )
146 M: texture-attachment allocate-framebuffer-attachment
147 [ [ texture>> ] [ level>> ] bi ] dip f allocate-texture ;
148 M: renderbuffer allocate-framebuffer-attachment
149 allocate-renderbuffer ;
151 GENERIC: framebuffer-attachment-dim ( framebuffer-attachment -- dim )
153 M: texture-attachment framebuffer-attachment-dim
154 [ texture>> ] [ level>> ] bi texture-dim
155 dup number? [ 1 2array ] [ 2 head ] if ;
157 M: renderbuffer framebuffer-attachment-dim
160 : each-attachment ( framebuffer quot: ( attachment -- ) -- )
161 [ [ color-attachments>> ] dip each ]
162 [ swap depth-attachment>> [ swap call ] [ drop ] if* ]
163 [ swap stencil-attachment>> [ swap call ] [ drop ] if* ] 2tri ; inline
165 :: each-attachment-target ( framebuffer quot: ( attachment-target attachment -- ) -- )
166 framebuffer color-attachments>>
167 [| attachment n | n GL_COLOR_ATTACHMENT0 + attachment quot call ] each-index
168 framebuffer depth-attachment>>
169 [| attachment | GL_DEPTH_ATTACHMENT attachment quot call ] when*
170 framebuffer stencil-attachment>>
171 [| attachment | GL_STENCIL_ATTACHMENT attachment quot call ] when* ; inline
173 GENERIC: bind-framebuffer-attachment ( attachment-target attachment -- )
175 M:: renderbuffer bind-framebuffer-attachment ( attachment-target renderbuffer -- )
176 GL_DRAW_FRAMEBUFFER attachment-target
177 GL_RENDERBUFFER renderbuffer handle>>
178 glFramebufferRenderbuffer ;
180 M:: texture-1d-attachment bind-framebuffer-attachment ( attachment-target texture-attachment -- )
181 GL_DRAW_FRAMEBUFFER attachment-target
182 texture-attachment [ texture>> [ texture-data-gl-target ] [ texture-object handle>> ] bi ] [ level>> ] bi
183 glFramebufferTexture1D ;
185 M:: texture-2d-attachment bind-framebuffer-attachment ( attachment-target texture-attachment -- )
186 GL_DRAW_FRAMEBUFFER attachment-target
187 texture-attachment [ texture>> [ texture-data-gl-target ] [ texture-object handle>> ] bi ] [ level>> ] bi
188 glFramebufferTexture2D ;
190 M:: texture-3d-attachment bind-framebuffer-attachment ( attachment-target texture-attachment -- )
191 GL_DRAW_FRAMEBUFFER attachment-target
193 [ texture>> [ texture-data-gl-target ] [ texture-object handle>> ] bi ]
194 [ level>> ] [ z-offset>> ] tri
195 glFramebufferTexture3D ;
197 M:: texture-layer-attachment bind-framebuffer-attachment ( attachment-target texture-attachment -- )
198 GL_DRAW_FRAMEBUFFER attachment-target
200 [ texture>> texture-object handle>> ]
201 [ level>> ] [ layer>> ] tri
202 glFramebufferTextureLayer ;
204 GENERIC: (default-gl-attachment) ( framebuffer -- gl-attachment )
205 GENERIC: (default-attachment-type) ( framebuffer -- type )
206 GENERIC: (default-attachment-image-type) ( framebuffer -- order type )
208 M: system-framebuffer (default-gl-attachment)
210 M: framebuffer (default-gl-attachment)
211 drop GL_COLOR_ATTACHMENT0 ;
213 SYMBOLS: float-type int-type uint-type ;
215 : (color-attachment-type) ( framebuffer index -- type )
216 swap color-attachments>> nth attachment-object component-type>> {
217 { [ dup signed-unnormalized-integer-components? ] [ drop int-type ] }
218 { [ dup unsigned-unnormalized-integer-components? ] [ drop uint-type ] }
222 M: system-framebuffer (default-attachment-type)
224 M: framebuffer (default-attachment-type)
225 0 (color-attachment-type) ;
227 M: system-framebuffer (default-attachment-image-type) ( framebuffer -- order type )
228 drop RGBA ubyte-components ;
229 M: framebuffer (default-attachment-image-type) ( framebuffer -- order type )
230 color-attachments>> first attachment-object
231 [ component-order>> ] [ component-type>> ] bi ;
233 : gl-system-attachment ( side face -- attachment )
235 { { f f } [ GL_FRONT_AND_BACK ] }
236 { { f front-face } [ GL_FRONT ] }
237 { { f back-face } [ GL_BACK ] }
238 { { left-side f } [ GL_LEFT ] }
239 { { left-side front-face } [ GL_FRONT_LEFT ] }
240 { { left-side back-face } [ GL_BACK_LEFT ] }
241 { { right-side f } [ GL_RIGHT ] }
242 { { right-side front-face } [ GL_FRONT_RIGHT ] }
243 { { right-side back-face } [ GL_BACK_RIGHT ] }
246 : gl-attachment ( framebuffer attachment-ref -- gl-attachment )
248 { depth-attachment [ GL_DEPTH_ATTACHMENT ] }
249 { stencil-attachment [ GL_STENCIL_ATTACHMENT ] }
250 { color-attachment [ GL_COLOR_ATTACHMENT0 + ] }
251 { system-attachment [ gl-system-attachment ] }
252 { default-attachment [ dup (default-gl-attachment) ] }
253 } match ] [ GL_NONE ] if* nip ;
255 : color-attachment-image-type ( framebuffer attachment-ref -- order type )
258 swap color-attachments>> nth
259 attachment-object [ component-order>> ] [ component-type>> ] bi
261 { system-attachment [ 3drop RGBA ubyte-components ] }
262 { default-attachment [ (default-attachment-image-type) ] }
265 : framebuffer-rect-image-type ( framebuffer-rect -- order type )
266 [ framebuffer>> ] [ attachment>> ] bi color-attachment-image-type ;
268 HOOK: (clear-integer-color-attachment) gpu-api ( type value -- )
270 M: opengl-2 (clear-integer-color-attachment)
273 { int-type [ glClearColorIiEXT ] }
274 { uint-type [ glClearColorIuiEXT ] }
275 } case GL_COLOR_BUFFER_BIT glClear ;
277 M: opengl-3 (clear-integer-color-attachment)
278 [ GL_COLOR 0 ] dip 4 0 pad-tail
280 { int-type [ int >c-array glClearBufferiv ] }
281 { uint-type [ uint >c-array glClearBufferuiv ] }
284 :: (clear-color-attachment) ( type attachment value -- )
285 attachment glDrawBuffer
287 [ value 4 value last pad-tail first4 glClearColor GL_COLOR_BUFFER_BIT glClear ]
288 [ type value (clear-integer-color-attachment) ] if ;
290 : framebuffer-rect-size ( framebuffer-rect -- size )
291 [ rect>> dim>> product ]
292 [ framebuffer-rect-image-type (bytes-per-pixel) ] bi * ;
296 TYPED: <full-framebuffer-rect> ( framebuffer: any-framebuffer
297 attachment: attachment-ref
299 framebuffer-rect: framebuffer-rect )
300 2dup framebuffer-attachment-at
301 { 0 0 } swap framebuffer-attachment-dim <rect>
304 TYPED: resize-framebuffer ( framebuffer: framebuffer dim -- )
305 [ allocate-framebuffer-attachment ] curry each-attachment ;
307 :: attach-framebuffer-attachments ( framebuffer -- )
308 GL_DRAW_FRAMEBUFFER framebuffer handle>> glBindFramebuffer
309 framebuffer [ bind-framebuffer-attachment ] each-attachment-target ; inline
311 M: framebuffer dispose
312 [ [ delete-framebuffer ] when* f ] change-handle drop ;
314 TYPED: dispose-framebuffer-attachments ( framebuffer: framebuffer -- )
315 [ [ dispose ] when* ] each-attachment ;
317 : <framebuffer> ( color-attachments
318 depth-attachment: framebuffer-attachment
319 stencil-attachment: framebuffer-attachment
322 framebuffer: framebuffer )
323 [ [ 0 ] 3dip framebuffer boa dup ] dip
324 [ resize-framebuffer ] [ drop ] if*
325 gen-framebuffer >>handle
326 dup attach-framebuffer-attachments
329 TYPED:: clear-framebuffer-attachment ( framebuffer: any-framebuffer
330 attachment-ref: attachment-ref
332 GL_DRAW_FRAMEBUFFER framebuffer framebuffer-handle glBindFramebuffer
334 { system-attachment [| side face |
336 side face gl-system-attachment
337 value (clear-color-attachment)
339 { color-attachment [| i |
340 framebuffer i (color-attachment-type)
341 GL_COLOR_ATTACHMENT0 i +
342 value (clear-color-attachment)
344 { default-attachment [
345 framebuffer [ (default-attachment-type) ] [ (default-gl-attachment) ] bi
346 value (clear-color-attachment)
348 { depth-attachment [ value glClearDepth GL_DEPTH_BUFFER_BIT glClear ] }
349 { stencil-attachment [ value glClearStencil GL_STENCIL_BUFFER_BIT glClear ] }
352 : clear-framebuffer ( framebuffer alist -- )
353 [ first2 clear-framebuffer-attachment ] with each ; inline
355 TYPED:: read-framebuffer-to ( framebuffer-rect: framebuffer-rect
357 GL_READ_FRAMEBUFFER framebuffer-rect framebuffer>> framebuffer-handle glBindFramebuffer
358 framebuffer-rect [ framebuffer>> ] [ attachment>> ] bi gl-attachment glReadBuffer
359 framebuffer-rect rect>> [ loc>> first2 ] [ dim>> first2 ] bi
360 framebuffer-rect framebuffer-rect-image-type image-data-format
361 gpu-data-ptr pixel-pack-buffer [ glReadPixels ] with-gpu-data-ptr ;
363 : read-framebuffer ( framebuffer-rect -- byte-array )
364 dup framebuffer-rect-size <byte-array> [ read-framebuffer-to ] keep ; inline
366 TYPED: read-framebuffer-image ( framebuffer-rect: framebuffer-rect -- image )
368 [ rect>> dim>> >>dim ]
370 framebuffer-rect-image-type
371 [ >>component-order ] [ >>component-type ] bi*
373 [ read-framebuffer >>bitmap ]
376 TYPED:: copy-framebuffer ( to-fb-rect: framebuffer-rect
377 from-fb-rect: framebuffer-rect
378 depth? stencil? filter: texture-filter -- )
379 GL_DRAW_FRAMEBUFFER to-fb-rect framebuffer>> framebuffer-handle glBindFramebuffer
380 to-fb-rect [ framebuffer>> ] [ attachment>> ] bi gl-attachment glDrawBuffer
381 GL_READ_FRAMEBUFFER from-fb-rect framebuffer>> framebuffer-handle glBindFramebuffer
382 from-fb-rect [ framebuffer>> ] [ attachment>> ] bi gl-attachment glReadBuffer
383 to-fb-rect attachment>> [ GL_COLOR_BUFFER_BIT ] [ 0 ] if
384 depth? [ GL_DEPTH_BUFFER_BIT ] [ 0 ] if bitor
385 stencil? [ GL_STENCIL_BUFFER_BIT ] [ 0 ] if bitor :> mask
387 from-fb-rect rect>> rect-extent [ first2 ] bi@
388 to-fb-rect rect>> rect-extent [ first2 ] bi@
389 mask filter gl-mag-filter glBlitFramebuffer ;