1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
4 * Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
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:
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
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
26 * Rob Clark <robclark@freedesktop.org>
30 #include "pipe/p_state.h"
31 #include "util/u_string.h"
32 #include "util/u_memory.h"
35 #include "fd4_context.h"
36 #include "fd4_format.h"
39 fd4_zsa_state_create(struct pipe_context
*pctx
,
40 const struct pipe_depth_stencil_alpha_state
*cso
)
42 struct fd4_zsa_stateobj
*so
;
44 so
= CALLOC_STRUCT(fd4_zsa_stateobj
);
50 so
->rb_depth_control
|=
51 A4XX_RB_DEPTH_CONTROL_ZFUNC(cso
->depth
.func
); /* maps 1:1 */
53 if (cso
->depth
.enabled
)
54 so
->rb_depth_control
|=
55 A4XX_RB_DEPTH_CONTROL_Z_ENABLE
|
56 A4XX_RB_DEPTH_CONTROL_Z_TEST_ENABLE
;
58 if (cso
->depth
.writemask
)
59 so
->rb_depth_control
|= A4XX_RB_DEPTH_CONTROL_Z_WRITE_ENABLE
;
61 if (cso
->stencil
[0].enabled
) {
62 const struct pipe_stencil_state
*s
= &cso
->stencil
[0];
64 so
->rb_stencil_control
|=
65 A4XX_RB_STENCIL_CONTROL_STENCIL_READ
|
66 A4XX_RB_STENCIL_CONTROL_STENCIL_ENABLE
|
67 A4XX_RB_STENCIL_CONTROL_FUNC(s
->func
) | /* maps 1:1 */
68 A4XX_RB_STENCIL_CONTROL_FAIL(fd_stencil_op(s
->fail_op
)) |
69 A4XX_RB_STENCIL_CONTROL_ZPASS(fd_stencil_op(s
->zpass_op
)) |
70 A4XX_RB_STENCIL_CONTROL_ZFAIL(fd_stencil_op(s
->zfail_op
));
71 so
->rb_stencil_control2
|=
72 A4XX_RB_STENCIL_CONTROL2_STENCIL_BUFFER
;
73 so
->rb_stencilrefmask
|=
74 0xff000000 | /* ??? */
75 A4XX_RB_STENCILREFMASK_STENCILWRITEMASK(s
->writemask
) |
76 A4XX_RB_STENCILREFMASK_STENCILMASK(s
->valuemask
);
78 if (cso
->stencil
[1].enabled
) {
79 const struct pipe_stencil_state
*bs
= &cso
->stencil
[1];
81 so
->rb_stencil_control
|=
82 A4XX_RB_STENCIL_CONTROL_STENCIL_ENABLE_BF
|
83 A4XX_RB_STENCIL_CONTROL_FUNC_BF(bs
->func
) | /* maps 1:1 */
84 A4XX_RB_STENCIL_CONTROL_FAIL_BF(fd_stencil_op(bs
->fail_op
)) |
85 A4XX_RB_STENCIL_CONTROL_ZPASS_BF(fd_stencil_op(bs
->zpass_op
)) |
86 A4XX_RB_STENCIL_CONTROL_ZFAIL_BF(fd_stencil_op(bs
->zfail_op
));
87 so
->rb_stencilrefmask_bf
|=
88 0xff000000 | /* ??? */
89 A4XX_RB_STENCILREFMASK_BF_STENCILWRITEMASK(bs
->writemask
) |
90 A4XX_RB_STENCILREFMASK_BF_STENCILMASK(bs
->valuemask
);
94 if (cso
->alpha
.enabled
) {
95 uint32_t ref
= cso
->alpha
.ref_value
* 255.0;
96 so
->gras_alpha_control
=
97 A4XX_GRAS_ALPHA_CONTROL_ALPHA_TEST_ENABLE
;
98 so
->rb_alpha_control
=
99 A4XX_RB_ALPHA_CONTROL_ALPHA_TEST
|
100 A4XX_RB_ALPHA_CONTROL_ALPHA_REF(ref
) |
101 A4XX_RB_ALPHA_CONTROL_ALPHA_TEST_FUNC(cso
->alpha
.func
);
102 so
->rb_depth_control
|=
103 A4XX_RB_DEPTH_CONTROL_EARLY_Z_DISABLE
;