1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/**********************************************************
* Copyright 2008-2009 VMware, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
**********************************************************/
#include "pipe/p_inlines.h"
#include "pipe/p_defines.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "svga_context.h"
#include "svga_state.h"
#include "svga_hw_reg.h"
static INLINE unsigned
svga_translate_compare_func(unsigned func)
{
switch (func) {
case PIPE_FUNC_NEVER: return SVGA3D_CMP_NEVER;
case PIPE_FUNC_LESS: return SVGA3D_CMP_LESS;
case PIPE_FUNC_LEQUAL: return SVGA3D_CMP_LESSEQUAL;
case PIPE_FUNC_GREATER: return SVGA3D_CMP_GREATER;
case PIPE_FUNC_GEQUAL: return SVGA3D_CMP_GREATEREQUAL;
case PIPE_FUNC_NOTEQUAL: return SVGA3D_CMP_NOTEQUAL;
case PIPE_FUNC_EQUAL: return SVGA3D_CMP_EQUAL;
case PIPE_FUNC_ALWAYS: return SVGA3D_CMP_ALWAYS;
default:
assert(0);
return SVGA3D_CMP_ALWAYS;
}
}
static INLINE unsigned
svga_translate_stencil_op(unsigned op)
{
switch (op) {
case PIPE_STENCIL_OP_KEEP: return SVGA3D_STENCILOP_KEEP;
case PIPE_STENCIL_OP_ZERO: return SVGA3D_STENCILOP_ZERO;
case PIPE_STENCIL_OP_REPLACE: return SVGA3D_STENCILOP_REPLACE;
case PIPE_STENCIL_OP_INCR: return SVGA3D_STENCILOP_INCR;
case PIPE_STENCIL_OP_DECR: return SVGA3D_STENCILOP_DECR;
case PIPE_STENCIL_OP_INCR_WRAP: return SVGA3D_STENCILOP_INCRSAT; /* incorrect? */
case PIPE_STENCIL_OP_DECR_WRAP: return SVGA3D_STENCILOP_DECRSAT; /* incorrect? */
case PIPE_STENCIL_OP_INVERT: return SVGA3D_STENCILOP_INVERT;
default:
assert(0);
return SVGA3D_STENCILOP_KEEP;
}
}
static void *
svga_create_depth_stencil_state(struct pipe_context *pipe,
const struct pipe_depth_stencil_alpha_state *templ)
{
struct svga_depth_stencil_state *ds = CALLOC_STRUCT( svga_depth_stencil_state );
/* Don't try to figure out CW/CCW correspondence with
* stencil[0]/[1] at this point. Presumably this can change as
* back/front face are modified.
*/
ds->stencil[0].enabled = templ->stencil[0].enabled;
if (ds->stencil[0].enabled) {
ds->stencil[0].func = svga_translate_compare_func(templ->stencil[0].func);
ds->stencil[0].fail = svga_translate_stencil_op(templ->stencil[0].fail_op);
ds->stencil[0].zfail = svga_translate_stencil_op(templ->stencil[0].zfail_op);
ds->stencil[0].pass = svga_translate_stencil_op(templ->stencil[0].zpass_op);
/* SVGA3D has one ref/mask/writemask triple shared between front &
* back face stencil. We really need two:
*/
ds->stencil_ref = templ->stencil[0].ref_value & 0xff;
ds->stencil_mask = templ->stencil[0].valuemask & 0xff;
ds->stencil_writemask = templ->stencil[0].writemask & 0xff;
}
ds->stencil[1].enabled = templ->stencil[1].enabled;
if (templ->stencil[1].enabled) {
ds->stencil[1].func = svga_translate_compare_func(templ->stencil[1].func);
ds->stencil[1].fail = svga_translate_stencil_op(templ->stencil[1].fail_op);
ds->stencil[1].zfail = svga_translate_stencil_op(templ->stencil[1].zfail_op);
ds->stencil[1].pass = svga_translate_stencil_op(templ->stencil[1].zpass_op);
ds->stencil_ref = templ->stencil[1].ref_value & 0xff;
ds->stencil_mask = templ->stencil[1].valuemask & 0xff;
ds->stencil_writemask = templ->stencil[1].writemask & 0xff;
}
ds->zenable = templ->depth.enabled;
if (ds->zenable) {
ds->zfunc = svga_translate_compare_func(templ->depth.func);
ds->zwriteenable = templ->depth.writemask;
}
ds->alphatestenable = templ->alpha.enabled;
if (ds->alphatestenable) {
ds->alphafunc = svga_translate_compare_func(templ->alpha.func);
ds->alpharef = templ->alpha.ref_value;
}
return ds;
}
static void svga_bind_depth_stencil_state(struct pipe_context *pipe,
void *depth_stencil)
{
struct svga_context *svga = svga_context(pipe);
svga->curr.depth = (const struct svga_depth_stencil_state *)depth_stencil;
svga->dirty |= SVGA_NEW_DEPTH_STENCIL;
}
static void svga_delete_depth_stencil_state(struct pipe_context *pipe,
void *depth_stencil)
{
FREE(depth_stencil);
}
void svga_init_depth_stencil_functions( struct svga_context *svga )
{
svga->pipe.create_depth_stencil_alpha_state = svga_create_depth_stencil_state;
svga->pipe.bind_depth_stencil_alpha_state = svga_bind_depth_stencil_state;
svga->pipe.delete_depth_stencil_alpha_state = svga_delete_depth_stencil_state;
}
|
