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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
*
* 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 (including the next
* paragraph) 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.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#include "pipe/p_state.h"
#include "util/u_string.h"
#include "util/u_memory.h"
#include "freedreno_blend.h"
#include "freedreno_context.h"
#include "freedreno_util.h"
static enum adreno_rb_blend_factor
blend_factor(unsigned factor)
{
switch (factor) {
case PIPE_BLENDFACTOR_ONE:
return FACTOR_ONE;
case PIPE_BLENDFACTOR_SRC_COLOR:
return FACTOR_SRC_COLOR;
case PIPE_BLENDFACTOR_SRC_ALPHA:
return FACTOR_SRC_ALPHA;
case PIPE_BLENDFACTOR_DST_ALPHA:
return FACTOR_DST_ALPHA;
case PIPE_BLENDFACTOR_DST_COLOR:
return FACTOR_DST_COLOR;
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
return FACTOR_SRC_ALPHA_SATURATE;
case PIPE_BLENDFACTOR_CONST_COLOR:
return FACTOR_CONSTANT_COLOR;
case PIPE_BLENDFACTOR_CONST_ALPHA:
return FACTOR_CONSTANT_ALPHA;
case PIPE_BLENDFACTOR_ZERO:
case 0:
return FACTOR_ZERO;
case PIPE_BLENDFACTOR_INV_SRC_COLOR:
return FACTOR_ONE_MINUS_SRC_COLOR;
case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
return FACTOR_ONE_MINUS_SRC_ALPHA;
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
return FACTOR_ONE_MINUS_DST_ALPHA;
case PIPE_BLENDFACTOR_INV_DST_COLOR:
return FACTOR_ONE_MINUS_DST_COLOR;
case PIPE_BLENDFACTOR_INV_CONST_COLOR:
return FACTOR_ONE_MINUS_CONSTANT_COLOR;
case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
return FACTOR_ONE_MINUS_CONSTANT_ALPHA;
case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
case PIPE_BLENDFACTOR_SRC1_COLOR:
case PIPE_BLENDFACTOR_SRC1_ALPHA:
/* I don't think these are supported */
default:
DBG("invalid blend factor: %x", factor);
return 0;
}
}
static enum adreno_rb_blend_opcode
blend_func(unsigned func)
{
switch (func) {
case PIPE_BLEND_ADD:
return BLEND_DST_PLUS_SRC;
case PIPE_BLEND_MIN:
return BLEND_MIN_DST_SRC;
case PIPE_BLEND_MAX:
return BLEND_MAX_DST_SRC;
case PIPE_BLEND_SUBTRACT:
return BLEND_SRC_MINUS_DST;
case PIPE_BLEND_REVERSE_SUBTRACT:
return BLEND_DST_MINUS_SRC;
default:
DBG("invalid blend func: %x", func);
return 0;
}
}
static void *
fd_blend_state_create(struct pipe_context *pctx,
const struct pipe_blend_state *cso)
{
const struct pipe_rt_blend_state *rt = &cso->rt[0];
struct fd_blend_stateobj *so;
if (cso->logicop_enable) {
DBG("Unsupported! logicop");
return NULL;
}
if (cso->independent_blend_enable) {
DBG("Unsupported! independent blend state");
return NULL;
}
so = CALLOC_STRUCT(fd_blend_stateobj);
if (!so)
return NULL;
so->base = *cso;
so->rb_colorcontrol = A2XX_RB_COLORCONTROL_ROP_CODE(12);
so->rb_blendcontrol =
A2XX_RB_BLEND_CONTROL_COLOR_SRCBLEND(blend_factor(rt->rgb_src_factor)) |
A2XX_RB_BLEND_CONTROL_COLOR_COMB_FCN(blend_func(rt->rgb_func)) |
A2XX_RB_BLEND_CONTROL_COLOR_DESTBLEND(blend_factor(rt->rgb_dst_factor)) |
A2XX_RB_BLEND_CONTROL_ALPHA_SRCBLEND(blend_factor(rt->alpha_src_factor)) |
A2XX_RB_BLEND_CONTROL_ALPHA_COMB_FCN(blend_func(rt->alpha_func)) |
A2XX_RB_BLEND_CONTROL_ALPHA_DESTBLEND(blend_factor(rt->alpha_dst_factor));
if (rt->colormask & PIPE_MASK_R)
so->rb_colormask |= A2XX_RB_COLOR_MASK_WRITE_RED;
if (rt->colormask & PIPE_MASK_G)
so->rb_colormask |= A2XX_RB_COLOR_MASK_WRITE_GREEN;
if (rt->colormask & PIPE_MASK_B)
so->rb_colormask |= A2XX_RB_COLOR_MASK_WRITE_BLUE;
if (rt->colormask & PIPE_MASK_A)
so->rb_colormask |= A2XX_RB_COLOR_MASK_WRITE_ALPHA;
if (!rt->blend_enable)
so->rb_colorcontrol |= A2XX_RB_COLORCONTROL_BLEND_DISABLE;
if (cso->dither)
so->rb_colorcontrol |= A2XX_RB_COLORCONTROL_DITHER_MODE(DITHER_ALWAYS);
return so;
}
static void
fd_blend_state_bind(struct pipe_context *pctx, void *hwcso)
{
struct fd_context *ctx = fd_context(pctx);
ctx->blend = hwcso;
ctx->dirty |= FD_DIRTY_BLEND;
}
static void
fd_blend_state_delete(struct pipe_context *pctx, void *hwcso)
{
FREE(hwcso);
}
void
fd_blend_init(struct pipe_context *pctx)
{
pctx->create_blend_state = fd_blend_state_create;
pctx->bind_blend_state = fd_blend_state_bind;
pctx->delete_blend_state = fd_blend_state_delete;
}
|
