1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3 /*
4 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 * Rob Clark <robclark@freedesktop.org>
27 */
28
29
30 #include "pipe/p_state.h"
31 #include "util/u_string.h"
32 #include "util/u_memory.h"
33
34 #include "fd2_zsa.h"
35 #include "fd2_context.h"
36 #include "fd2_util.h"
37
38 void *
fd2_zsa_state_create(struct pipe_context * pctx,const struct pipe_depth_stencil_alpha_state * cso)39 fd2_zsa_state_create(struct pipe_context *pctx,
40 const struct pipe_depth_stencil_alpha_state *cso)
41 {
42 struct fd2_zsa_stateobj *so;
43
44 so = CALLOC_STRUCT(fd2_zsa_stateobj);
45 if (!so)
46 return NULL;
47
48 so->base = *cso;
49
50 so->rb_depthcontrol |=
51 A2XX_RB_DEPTHCONTROL_ZFUNC(cso->depth.func); /* maps 1:1 */
52
53 if (cso->depth.enabled)
54 so->rb_depthcontrol |= A2XX_RB_DEPTHCONTROL_Z_ENABLE;
55 if (cso->depth.writemask)
56 so->rb_depthcontrol |= A2XX_RB_DEPTHCONTROL_Z_WRITE_ENABLE;
57
58 if (cso->stencil[0].enabled) {
59 const struct pipe_stencil_state *s = &cso->stencil[0];
60
61 so->rb_depthcontrol |=
62 A2XX_RB_DEPTHCONTROL_STENCIL_ENABLE |
63 A2XX_RB_DEPTHCONTROL_STENCILFUNC(s->func) | /* maps 1:1 */
64 A2XX_RB_DEPTHCONTROL_STENCILFAIL(fd_stencil_op(s->fail_op)) |
65 A2XX_RB_DEPTHCONTROL_STENCILZPASS(fd_stencil_op(s->zpass_op)) |
66 A2XX_RB_DEPTHCONTROL_STENCILZFAIL(fd_stencil_op(s->zfail_op));
67 so->rb_stencilrefmask |=
68 0xff000000 | /* ??? */
69 A2XX_RB_STENCILREFMASK_STENCILWRITEMASK(s->writemask) |
70 A2XX_RB_STENCILREFMASK_STENCILMASK(s->valuemask);
71
72 if (cso->stencil[1].enabled) {
73 const struct pipe_stencil_state *bs = &cso->stencil[1];
74
75 so->rb_depthcontrol |=
76 A2XX_RB_DEPTHCONTROL_BACKFACE_ENABLE |
77 A2XX_RB_DEPTHCONTROL_STENCILFUNC_BF(bs->func) | /* maps 1:1 */
78 A2XX_RB_DEPTHCONTROL_STENCILFAIL_BF(fd_stencil_op(bs->fail_op)) |
79 A2XX_RB_DEPTHCONTROL_STENCILZPASS_BF(fd_stencil_op(bs->zpass_op)) |
80 A2XX_RB_DEPTHCONTROL_STENCILZFAIL_BF(fd_stencil_op(bs->zfail_op));
81 so->rb_stencilrefmask_bf |=
82 0xff000000 | /* ??? */
83 A2XX_RB_STENCILREFMASK_STENCILWRITEMASK(bs->writemask) |
84 A2XX_RB_STENCILREFMASK_STENCILMASK(bs->valuemask);
85 }
86 }
87
88 if (cso->alpha.enabled) {
89 so->rb_colorcontrol =
90 A2XX_RB_COLORCONTROL_ALPHA_FUNC(cso->alpha.func) |
91 A2XX_RB_COLORCONTROL_ALPHA_TEST_ENABLE;
92 so->rb_alpha_ref = fui(cso->alpha.ref_value);
93 }
94
95 return so;
96 }
97