1 /**************************************************************************
3 * Copyright 2009 Younes Manton.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "vl_compositor.h"
29 #include "util/u_draw.h"
31 #include <pipe/p_context.h>
32 #include <util/u_inlines.h>
33 #include <util/u_memory.h>
34 #include <util/u_keymap.h>
35 #include <util/u_draw.h>
36 #include <util/u_sampler.h>
37 #include <tgsi/tgsi_ureg.h>
40 struct vertex_shader_consts
42 struct vertex4f dst_scale
;
43 struct vertex4f dst_trans
;
44 struct vertex4f src_scale
;
45 struct vertex4f src_trans
;
48 struct fragment_shader_consts
54 u_video_rects_equal(struct pipe_video_rect
*a
, struct pipe_video_rect
*b
)
71 create_vert_shader(struct vl_compositor
*c
)
73 struct ureg_program
*shader
;
74 struct ureg_src vpos
, vtex
;
75 struct ureg_dst o_vpos
, o_vtex
;
77 shader
= ureg_create(TGSI_PROCESSOR_VERTEX
);
81 vpos
= ureg_DECL_vs_input(shader
, 0);
82 vtex
= ureg_DECL_vs_input(shader
, 1);
83 o_vpos
= ureg_DECL_output(shader
, TGSI_SEMANTIC_POSITION
, 0);
84 o_vtex
= ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, 1);
90 ureg_MOV(shader
, o_vpos
, vpos
);
91 ureg_MOV(shader
, o_vtex
, vtex
);
95 c
->vertex_shader
= ureg_create_shader_and_destroy(shader
, c
->pipe
);
96 if (!c
->vertex_shader
)
103 create_frag_shader_ycbcr_2_rgb(struct vl_compositor
*c
)
105 struct ureg_program
*shader
;
107 struct ureg_src csc
[4];
108 struct ureg_src sampler
;
109 struct ureg_dst texel
;
110 struct ureg_dst fragment
;
113 shader
= ureg_create(TGSI_PROCESSOR_FRAGMENT
);
117 tc
= ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, 1, TGSI_INTERPOLATE_LINEAR
);
118 for (i
= 0; i
< 4; ++i
)
119 csc
[i
] = ureg_DECL_constant(shader
, i
);
120 sampler
= ureg_DECL_sampler(shader
, 0);
121 texel
= ureg_DECL_temporary(shader
);
122 fragment
= ureg_DECL_output(shader
, TGSI_SEMANTIC_COLOR
, 0);
125 * texel = tex(tc, sampler)
126 * fragment = csc * texel
128 ureg_TEX(shader
, texel
, TGSI_TEXTURE_2D
, tc
, sampler
);
129 for (i
= 0; i
< 4; ++i
)
130 ureg_DP4(shader
, ureg_writemask(fragment
, TGSI_WRITEMASK_X
<< i
), csc
[i
], ureg_src(texel
));
132 ureg_release_temporary(shader
, texel
);
135 c
->fragment_shader
.ycbcr_2_rgb
= ureg_create_shader_and_destroy(shader
, c
->pipe
);
136 if (!c
->fragment_shader
.ycbcr_2_rgb
)
143 create_frag_shader_rgb_2_rgb(struct vl_compositor
*c
)
145 struct ureg_program
*shader
;
147 struct ureg_src sampler
;
148 struct ureg_dst fragment
;
150 shader
= ureg_create(TGSI_PROCESSOR_FRAGMENT
);
154 tc
= ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, 1, TGSI_INTERPOLATE_LINEAR
);
155 sampler
= ureg_DECL_sampler(shader
, 0);
156 fragment
= ureg_DECL_output(shader
, TGSI_SEMANTIC_COLOR
, 0);
159 * fragment = tex(tc, sampler)
161 ureg_TEX(shader
, fragment
, TGSI_TEXTURE_2D
, tc
, sampler
);
164 c
->fragment_shader
.rgb_2_rgb
= ureg_create_shader_and_destroy(shader
, c
->pipe
);
165 if (!c
->fragment_shader
.rgb_2_rgb
)
172 init_pipe_state(struct vl_compositor
*c
)
174 struct pipe_sampler_state sampler
;
178 c
->fb_state
.nr_cbufs
= 1;
179 c
->fb_state
.zsbuf
= NULL
;
181 memset(&sampler
, 0, sizeof(sampler
));
182 sampler
.wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
183 sampler
.wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
184 sampler
.wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
185 sampler
.min_img_filter
= PIPE_TEX_FILTER_LINEAR
;
186 sampler
.min_mip_filter
= PIPE_TEX_MIPFILTER_NONE
;
187 sampler
.mag_img_filter
= PIPE_TEX_FILTER_LINEAR
;
188 sampler
.compare_mode
= PIPE_TEX_COMPARE_NONE
;
189 sampler
.compare_func
= PIPE_FUNC_ALWAYS
;
190 sampler
.normalized_coords
= 1;
191 /*sampler.lod_bias = ;*/
192 /*sampler.min_lod = ;*/
193 /*sampler.max_lod = ;*/
194 /*sampler.border_color[i] = ;*/
195 /*sampler.max_anisotropy = ;*/
196 c
->sampler
= c
->pipe
->create_sampler_state(c
->pipe
, &sampler
);
201 static void cleanup_pipe_state(struct vl_compositor
*c
)
205 c
->pipe
->delete_sampler_state(c
->pipe
, c
->sampler
);
209 init_shaders(struct vl_compositor
*c
)
213 if (!create_vert_shader(c
)) {
214 debug_printf("Unable to create vertex shader.\n");
217 if (!create_frag_shader_ycbcr_2_rgb(c
)) {
218 debug_printf("Unable to create YCbCr-to-RGB fragment shader.\n");
221 if (!create_frag_shader_rgb_2_rgb(c
)) {
222 debug_printf("Unable to create RGB-to-RGB fragment shader.\n");
229 static void cleanup_shaders(struct vl_compositor
*c
)
233 c
->pipe
->delete_vs_state(c
->pipe
, c
->vertex_shader
);
234 c
->pipe
->delete_fs_state(c
->pipe
, c
->fragment_shader
.ycbcr_2_rgb
);
235 c
->pipe
->delete_fs_state(c
->pipe
, c
->fragment_shader
.rgb_2_rgb
);
239 init_buffers(struct vl_compositor
*c
)
241 struct fragment_shader_consts fsc
;
242 struct pipe_vertex_element vertex_elems
[2];
247 * Create our vertex buffer and vertex buffer elements
249 c
->vertex_buf
.stride
= sizeof(struct vertex4f
);
250 c
->vertex_buf
.max_index
= (VL_COMPOSITOR_MAX_LAYERS
+ 2) * 6 - 1;
251 c
->vertex_buf
.buffer_offset
= 0;
252 /* XXX: Create with DYNAMIC or STREAM */
253 c
->vertex_buf
.buffer
= pipe_buffer_create
256 PIPE_BIND_VERTEX_BUFFER
,
257 sizeof(struct vertex4f
) * (VL_COMPOSITOR_MAX_LAYERS
+ 2) * 6
260 vertex_elems
[0].src_offset
= 0;
261 vertex_elems
[0].instance_divisor
= 0;
262 vertex_elems
[0].vertex_buffer_index
= 0;
263 vertex_elems
[0].src_format
= PIPE_FORMAT_R32G32_FLOAT
;
264 vertex_elems
[1].src_offset
= sizeof(struct vertex2f
);
265 vertex_elems
[1].instance_divisor
= 0;
266 vertex_elems
[1].vertex_buffer_index
= 0;
267 vertex_elems
[1].src_format
= PIPE_FORMAT_R32G32_FLOAT
;
268 c
->vertex_elems_state
= c
->pipe
->create_vertex_elements_state(c
->pipe
, 2, vertex_elems
);
271 * Create our fragment shader's constant buffer
272 * Const buffer contains the color conversion matrix and bias vectors
274 /* XXX: Create with IMMUTABLE/STATIC... although it does change every once in a long while... */
275 c
->fs_const_buf
= pipe_buffer_create
278 PIPE_BIND_CONSTANT_BUFFER
,
279 sizeof(struct fragment_shader_consts
)
282 vl_csc_get_matrix(VL_CSC_COLOR_STANDARD_IDENTITY
, NULL
, true, fsc
.matrix
);
284 vl_compositor_set_csc_matrix(c
, fsc
.matrix
);
290 cleanup_buffers(struct vl_compositor
*c
)
294 c
->pipe
->delete_vertex_elements_state(c
->pipe
, c
->vertex_elems_state
);
295 pipe_resource_reference(&c
->vertex_buf
.buffer
, NULL
);
296 pipe_resource_reference(&c
->fs_const_buf
, NULL
);
300 texview_map_delete(const struct keymap
*map
,
301 const void *key
, void *data
,
304 struct pipe_sampler_view
*sv
= (struct pipe_sampler_view
*)data
;
311 pipe_sampler_view_reference(&sv
, NULL
);
314 bool vl_compositor_init(struct vl_compositor
*compositor
, struct pipe_context
*pipe
)
320 memset(compositor
, 0, sizeof(struct vl_compositor
));
322 compositor
->pipe
= pipe
;
324 compositor
->texview_map
= util_new_keymap(sizeof(struct pipe_surface
*), -1,
326 if (!compositor
->texview_map
)
329 if (!init_pipe_state(compositor
)) {
330 util_delete_keymap(compositor
->texview_map
, compositor
->pipe
);
333 if (!init_shaders(compositor
)) {
334 util_delete_keymap(compositor
->texview_map
, compositor
->pipe
);
335 cleanup_pipe_state(compositor
);
338 if (!init_buffers(compositor
)) {
339 util_delete_keymap(compositor
->texview_map
, compositor
->pipe
);
340 cleanup_shaders(compositor
);
341 cleanup_pipe_state(compositor
);
345 compositor
->fb_state
.width
= 0;
346 compositor
->fb_state
.height
= 0;
347 compositor
->bg
= NULL
;
348 compositor
->dirty_bg
= false;
349 for (i
= 0; i
< VL_COMPOSITOR_MAX_LAYERS
; ++i
)
350 compositor
->layers
[i
] = NULL
;
351 compositor
->dirty_layers
= 0;
356 void vl_compositor_cleanup(struct vl_compositor
*compositor
)
360 util_delete_keymap(compositor
->texview_map
, compositor
->pipe
);
361 cleanup_buffers(compositor
);
362 cleanup_shaders(compositor
);
363 cleanup_pipe_state(compositor
);
366 void vl_compositor_set_background(struct vl_compositor
*compositor
,
367 struct pipe_surface
*bg
, struct pipe_video_rect
*bg_src_rect
)
370 assert((bg
&& bg_src_rect
) || (!bg
&& !bg_src_rect
));
372 if (compositor
->bg
!= bg
||
373 !u_video_rects_equal(&compositor
->bg_src_rect
, bg_src_rect
)) {
374 pipe_surface_reference(&compositor
->bg
, bg
);
375 /*if (!u_video_rects_equal(&compositor->bg_src_rect, bg_src_rect))*/
376 compositor
->bg_src_rect
= *bg_src_rect
;
377 compositor
->dirty_bg
= true;
381 void vl_compositor_set_layers(struct vl_compositor
*compositor
,
382 struct pipe_surface
*layers
[],
383 struct pipe_video_rect
*src_rects
[],
384 struct pipe_video_rect
*dst_rects
[],
390 assert(num_layers
<= VL_COMPOSITOR_MAX_LAYERS
);
392 for (i
= 0; i
< num_layers
; ++i
)
394 assert((layers
[i
] && src_rects
[i
] && dst_rects
[i
]) ||
395 (!layers
[i
] && !src_rects
[i
] && !dst_rects
[i
]));
397 if (compositor
->layers
[i
] != layers
[i
] ||
398 !u_video_rects_equal(&compositor
->layer_src_rects
[i
], src_rects
[i
]) ||
399 !u_video_rects_equal(&compositor
->layer_dst_rects
[i
], dst_rects
[i
]))
401 pipe_surface_reference(&compositor
->layers
[i
], layers
[i
]);
402 /*if (!u_video_rects_equal(&compositor->layer_src_rects[i], src_rects[i]))*/
403 compositor
->layer_src_rects
[i
] = *src_rects
[i
];
404 /*if (!u_video_rects_equal(&compositor->layer_dst_rects[i], dst_rects[i]))*/
405 compositor
->layer_dst_rects
[i
] = *dst_rects
[i
];
406 compositor
->dirty_layers
|= 1 << i
;
410 compositor
->dirty_layers
|= 1 << i
;
413 for (; i
< VL_COMPOSITOR_MAX_LAYERS
; ++i
)
414 pipe_surface_reference(&compositor
->layers
[i
], NULL
);
417 static void gen_rect_verts(unsigned pos
,
418 struct pipe_video_rect
*src_rect
,
419 struct vertex2f
*src_inv_size
,
420 struct pipe_video_rect
*dst_rect
,
421 struct vertex2f
*dst_inv_size
,
424 assert(pos
< VL_COMPOSITOR_MAX_LAYERS
+ 2);
426 assert(src_inv_size
);
427 assert((dst_rect
&& dst_inv_size
) /*|| (!dst_rect && !dst_inv_size)*/);
430 vb
[pos
* 6 + 0].x
= dst_rect
->x
* dst_inv_size
->x
;
431 vb
[pos
* 6 + 0].y
= dst_rect
->y
* dst_inv_size
->y
;
432 vb
[pos
* 6 + 0].z
= src_rect
->x
* src_inv_size
->x
;
433 vb
[pos
* 6 + 0].w
= src_rect
->y
* src_inv_size
->y
;
435 vb
[pos
* 6 + 1].x
= dst_rect
->x
* dst_inv_size
->x
;
436 vb
[pos
* 6 + 1].y
= (dst_rect
->y
+ dst_rect
->h
) * dst_inv_size
->y
;
437 vb
[pos
* 6 + 1].z
= src_rect
->x
* src_inv_size
->x
;
438 vb
[pos
* 6 + 1].w
= (src_rect
->y
+ src_rect
->h
) * src_inv_size
->y
;
440 vb
[pos
* 6 + 2].x
= (dst_rect
->x
+ dst_rect
->w
) * dst_inv_size
->x
;
441 vb
[pos
* 6 + 2].y
= dst_rect
->y
* dst_inv_size
->y
;
442 vb
[pos
* 6 + 2].z
= (src_rect
->x
+ src_rect
->w
) * src_inv_size
->x
;
443 vb
[pos
* 6 + 2].w
= src_rect
->y
* src_inv_size
->y
;
445 vb
[pos
* 6 + 3].x
= (dst_rect
->x
+ dst_rect
->w
) * dst_inv_size
->x
;
446 vb
[pos
* 6 + 3].y
= dst_rect
->y
* dst_inv_size
->y
;
447 vb
[pos
* 6 + 3].z
= (src_rect
->x
+ src_rect
->w
) * src_inv_size
->x
;
448 vb
[pos
* 6 + 3].w
= src_rect
->y
* src_inv_size
->y
;
450 vb
[pos
* 6 + 4].x
= dst_rect
->x
* dst_inv_size
->x
;
451 vb
[pos
* 6 + 4].y
= (dst_rect
->y
+ dst_rect
->h
) * dst_inv_size
->y
;
452 vb
[pos
* 6 + 4].z
= src_rect
->x
* src_inv_size
->x
;
453 vb
[pos
* 6 + 4].w
= (src_rect
->y
+ src_rect
->h
) * src_inv_size
->y
;
455 vb
[pos
* 6 + 5].x
= (dst_rect
->x
+ dst_rect
->w
) * dst_inv_size
->x
;
456 vb
[pos
* 6 + 5].y
= (dst_rect
->y
+ dst_rect
->h
) * dst_inv_size
->y
;
457 vb
[pos
* 6 + 5].z
= (src_rect
->x
+ src_rect
->w
) * src_inv_size
->x
;
458 vb
[pos
* 6 + 5].w
= (src_rect
->y
+ src_rect
->h
) * src_inv_size
->y
;
461 static unsigned gen_data(struct vl_compositor
*c
,
462 struct pipe_surface
*src_surface
,
463 struct pipe_video_rect
*src_rect
,
464 struct pipe_video_rect
*dst_rect
,
465 struct pipe_surface
**textures
,
469 struct pipe_transfer
*buf_transfer
;
470 unsigned num_rects
= 0;
479 vb
= pipe_buffer_map(c
->pipe
, c
->vertex_buf
.buffer
,
480 PIPE_TRANSFER_WRITE
| PIPE_TRANSFER_DISCARD
,
487 struct vertex2f bg_inv_size
= {1.0f
/ c
->bg
->width
, 1.0f
/ c
->bg
->height
};
488 gen_rect_verts(num_rects
, &c
->bg_src_rect
, &bg_inv_size
, NULL
, NULL
, vb
);
489 textures
[num_rects
] = c
->bg
;
491 frag_shaders
[num_rects
] = c
->fragment_shader
.rgb_2_rgb
;
497 struct vertex2f src_inv_size
= { 1.0f
/ src_surface
->width
, 1.0f
/ src_surface
->height
};
498 gen_rect_verts(num_rects
, src_rect
, &src_inv_size
, dst_rect
, &c
->fb_inv_size
, vb
);
499 textures
[num_rects
] = src_surface
;
500 /* XXX: Hack, sort of */
501 frag_shaders
[num_rects
] = c
->fragment_shader
.ycbcr_2_rgb
;
505 for (i
= 0; c
->dirty_layers
> 0; i
++) {
506 assert(i
< VL_COMPOSITOR_MAX_LAYERS
);
508 if (c
->dirty_layers
& (1 << i
)) {
509 struct vertex2f layer_inv_size
= {1.0f
/ c
->layers
[i
]->width
, 1.0f
/ c
->layers
[i
]->height
};
510 gen_rect_verts(num_rects
, &c
->layer_src_rects
[i
], &layer_inv_size
,
511 &c
->layer_dst_rects
[i
], &c
->fb_inv_size
, vb
);
512 textures
[num_rects
] = c
->layers
[i
];
514 frag_shaders
[num_rects
] = c
->fragment_shader
.rgb_2_rgb
;
516 c
->dirty_layers
&= ~(1 << i
);
520 pipe_buffer_unmap(c
->pipe
, c
->vertex_buf
.buffer
, buf_transfer
);
525 static void draw_layers(struct vl_compositor
*c
,
526 struct pipe_surface
*src_surface
,
527 struct pipe_video_rect
*src_rect
,
528 struct pipe_video_rect
*dst_rect
)
531 struct pipe_surface
*src_surfaces
[VL_COMPOSITOR_MAX_LAYERS
+ 2];
532 void *frag_shaders
[VL_COMPOSITOR_MAX_LAYERS
+ 2];
540 num_rects
= gen_data(c
, src_surface
, src_rect
, dst_rect
, src_surfaces
, frag_shaders
);
542 for (i
= 0; i
< num_rects
; ++i
) {
543 boolean delete_view
= FALSE
;
544 struct pipe_sampler_view
*surface_view
= (struct pipe_sampler_view
*)util_keymap_lookup(c
->texview_map
,
547 struct pipe_sampler_view templat
;
548 u_sampler_view_default_template(&templat
, src_surfaces
[i
]->texture
,
549 src_surfaces
[i
]->texture
->format
);
550 surface_view
= c
->pipe
->create_sampler_view(c
->pipe
, src_surfaces
[i
]->texture
,
555 delete_view
= !util_keymap_insert(c
->texview_map
, &src_surfaces
[i
],
556 surface_view
, c
->pipe
);
559 c
->pipe
->bind_fs_state(c
->pipe
, frag_shaders
[i
]);
560 c
->pipe
->set_fragment_sampler_views(c
->pipe
, 1, &surface_view
);
562 util_draw_arrays(c
->pipe
, PIPE_PRIM_TRIANGLES
, i
* 6, 6);
565 pipe_sampler_view_reference(&surface_view
, NULL
);
570 void vl_compositor_render(struct vl_compositor
*compositor
,
571 struct pipe_surface
*src_surface
,
572 enum pipe_mpeg12_picture_type picture_type
,
573 /*unsigned num_past_surfaces,
574 struct pipe_surface *past_surfaces,
575 unsigned num_future_surfaces,
576 struct pipe_surface *future_surfaces,*/
577 struct pipe_video_rect
*src_area
,
578 struct pipe_surface
*dst_surface
,
579 struct pipe_video_rect
*dst_area
,
580 struct pipe_fence_handle
**fence
)
587 assert(picture_type
== PIPE_MPEG12_PICTURE_TYPE_FRAME
);
589 if (compositor
->fb_state
.width
!= dst_surface
->width
) {
590 compositor
->fb_inv_size
.x
= 1.0f
/ dst_surface
->width
;
591 compositor
->fb_state
.width
= dst_surface
->width
;
593 if (compositor
->fb_state
.height
!= dst_surface
->height
) {
594 compositor
->fb_inv_size
.y
= 1.0f
/ dst_surface
->height
;
595 compositor
->fb_state
.height
= dst_surface
->height
;
598 compositor
->fb_state
.cbufs
[0] = dst_surface
;
600 compositor
->viewport
.scale
[0] = compositor
->fb_state
.width
;
601 compositor
->viewport
.scale
[1] = compositor
->fb_state
.height
;
602 compositor
->viewport
.scale
[2] = 1;
603 compositor
->viewport
.scale
[3] = 1;
604 compositor
->viewport
.translate
[0] = 0;
605 compositor
->viewport
.translate
[1] = 0;
606 compositor
->viewport
.translate
[2] = 0;
607 compositor
->viewport
.translate
[3] = 0;
609 compositor
->pipe
->set_framebuffer_state(compositor
->pipe
, &compositor
->fb_state
);
610 compositor
->pipe
->set_viewport_state(compositor
->pipe
, &compositor
->viewport
);
611 compositor
->pipe
->bind_fragment_sampler_states(compositor
->pipe
, 1, &compositor
->sampler
);
612 compositor
->pipe
->bind_vs_state(compositor
->pipe
, compositor
->vertex_shader
);
613 compositor
->pipe
->set_vertex_buffers(compositor
->pipe
, 1, &compositor
->vertex_buf
);
614 compositor
->pipe
->bind_vertex_elements_state(compositor
->pipe
, compositor
->vertex_elems_state
);
615 compositor
->pipe
->set_constant_buffer(compositor
->pipe
, PIPE_SHADER_FRAGMENT
, 0, compositor
->fs_const_buf
);
617 draw_layers(compositor
, src_surface
, src_area
, dst_area
);
619 assert(!compositor
->dirty_bg
&& !compositor
->dirty_layers
);
620 compositor
->pipe
->flush(compositor
->pipe
, PIPE_FLUSH_RENDER_CACHE
, fence
);
623 void vl_compositor_set_csc_matrix(struct vl_compositor
*compositor
, const float *mat
)
625 struct pipe_transfer
*buf_transfer
;
631 pipe_buffer_map(compositor
->pipe
, compositor
->fs_const_buf
,
632 PIPE_TRANSFER_WRITE
| PIPE_TRANSFER_DISCARD
,
635 sizeof(struct fragment_shader_consts
)
638 pipe_buffer_unmap(compositor
->pipe
, compositor
->fs_const_buf
,