1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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 /* Authors: Keith Whitwell <keithw@vmware.com>
31 #include "pipe/p_state.h"
32 #include "util/u_inlines.h"
33 #include "util/u_framebuffer.h"
34 #include "util/u_surface.h"
35 #include "lp_context.h"
40 #include "draw/draw_context.h"
42 #include "util/u_format.h"
46 * Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
49 llvmpipe_set_framebuffer_state(struct pipe_context
*pipe
,
50 const struct pipe_framebuffer_state
*fb
)
52 struct llvmpipe_context
*lp
= llvmpipe_context(pipe
);
54 boolean changed
= !util_framebuffer_state_equal(&lp
->framebuffer
, fb
);
57 assert(fb
->width
<= LP_MAX_WIDTH
);
58 assert(fb
->height
<= LP_MAX_HEIGHT
);
62 * If no depth buffer is bound, send the utility function the default
63 * format for no bound depth (PIPE_FORMAT_NONE).
65 enum pipe_format depth_format
= fb
->zsbuf
?
66 fb
->zsbuf
->format
: PIPE_FORMAT_NONE
;
67 const struct util_format_description
*depth_desc
=
68 util_format_description(depth_format
);
70 if (lp
->framebuffer
.zsbuf
&& lp
->framebuffer
.zsbuf
->context
!= pipe
) {
71 debug_printf("Illegal setting of fb state with zsbuf created in "
74 for (i
= 0; i
< fb
->nr_cbufs
; i
++) {
75 if (lp
->framebuffer
.cbufs
[i
] &&
76 lp
->framebuffer
.cbufs
[i
]->context
!= pipe
) {
77 debug_printf("Illegal setting of fb state with cbuf %d created in "
78 "another context\n", i
);
82 util_copy_framebuffer_state(&lp
->framebuffer
, fb
);
84 if (LP_PERF
& PERF_NO_DEPTH
) {
85 pipe_surface_reference(&lp
->framebuffer
.zsbuf
, NULL
);
89 * Calculate the floating point depth sense and Minimum Resolvable Depth
90 * value for the llvmpipe module. This is separate from the draw module.
92 lp
->floating_point_depth
=
93 (util_get_depth_format_type(depth_desc
) == UTIL_FORMAT_TYPE_FLOAT
);
95 lp
->mrd
= util_get_depth_format_mrd(depth_desc
);
97 /* Tell the draw module how deep the Z/depth buffer is. */
98 draw_set_zs_format(lp
->draw
, depth_format
);
100 lp_setup_bind_framebuffer( lp
->setup
, &lp
->framebuffer
);
102 lp
->dirty
|= LP_NEW_FRAMEBUFFER
;