1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
4 * Copyright (C) 2013 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>
29 #include "pipe/p_state.h"
30 #include "util/u_blend.h"
31 #include "util/u_string.h"
32 #include "util/u_memory.h"
34 #include "fd3_blend.h"
35 #include "fd3_context.h"
36 #include "fd3_format.h"
39 static enum a3xx_rb_blend_opcode
40 blend_func(unsigned func
)
44 return BLEND_DST_PLUS_SRC
;
46 return BLEND_MIN_DST_SRC
;
48 return BLEND_MAX_DST_SRC
;
49 case PIPE_BLEND_SUBTRACT
:
50 return BLEND_SRC_MINUS_DST
;
51 case PIPE_BLEND_REVERSE_SUBTRACT
:
52 return BLEND_DST_MINUS_SRC
;
54 DBG("invalid blend func: %x", func
);
60 fd3_blend_state_create(struct pipe_context
*pctx
,
61 const struct pipe_blend_state
*cso
)
63 struct fd3_blend_stateobj
*so
;
64 enum a3xx_rop_code rop
= ROP_COPY
;
65 bool reads_dest
= false;
68 if (cso
->logicop_enable
) {
69 rop
= cso
->logicop_func
; /* maps 1:1 */
71 switch (cso
->logicop_func
) {
72 case PIPE_LOGICOP_NOR
:
73 case PIPE_LOGICOP_AND_INVERTED
:
74 case PIPE_LOGICOP_AND_REVERSE
:
75 case PIPE_LOGICOP_INVERT
:
76 case PIPE_LOGICOP_XOR
:
77 case PIPE_LOGICOP_NAND
:
78 case PIPE_LOGICOP_AND
:
79 case PIPE_LOGICOP_EQUIV
:
80 case PIPE_LOGICOP_NOOP
:
81 case PIPE_LOGICOP_OR_INVERTED
:
82 case PIPE_LOGICOP_OR_REVERSE
:
89 so
= CALLOC_STRUCT(fd3_blend_stateobj
);
95 for (i
= 0; i
< ARRAY_SIZE(so
->rb_mrt
); i
++) {
96 const struct pipe_rt_blend_state
*rt
;
97 if (cso
->independent_blend_enable
)
102 so
->rb_mrt
[i
].blend_control_rgb
=
103 A3XX_RB_MRT_BLEND_CONTROL_RGB_SRC_FACTOR(fd_blend_factor(rt
->rgb_src_factor
)) |
104 A3XX_RB_MRT_BLEND_CONTROL_RGB_BLEND_OPCODE(blend_func(rt
->rgb_func
)) |
105 A3XX_RB_MRT_BLEND_CONTROL_RGB_DEST_FACTOR(fd_blend_factor(rt
->rgb_dst_factor
));
107 so
->rb_mrt
[i
].blend_control_alpha
=
108 A3XX_RB_MRT_BLEND_CONTROL_ALPHA_SRC_FACTOR(fd_blend_factor(rt
->alpha_src_factor
)) |
109 A3XX_RB_MRT_BLEND_CONTROL_ALPHA_BLEND_OPCODE(blend_func(rt
->alpha_func
)) |
110 A3XX_RB_MRT_BLEND_CONTROL_ALPHA_DEST_FACTOR(fd_blend_factor(rt
->alpha_dst_factor
));
112 so
->rb_mrt
[i
].blend_control_no_alpha_rgb
=
113 A3XX_RB_MRT_BLEND_CONTROL_RGB_SRC_FACTOR(fd_blend_factor(util_blend_dst_alpha_to_one(rt
->rgb_src_factor
))) |
114 A3XX_RB_MRT_BLEND_CONTROL_RGB_BLEND_OPCODE(blend_func(rt
->rgb_func
)) |
115 A3XX_RB_MRT_BLEND_CONTROL_RGB_DEST_FACTOR(fd_blend_factor(util_blend_dst_alpha_to_one(rt
->rgb_dst_factor
)));
117 so
->rb_mrt
[i
].control
=
118 A3XX_RB_MRT_CONTROL_ROP_CODE(rop
) |
119 A3XX_RB_MRT_CONTROL_COMPONENT_ENABLE(rt
->colormask
);
121 if (rt
->blend_enable
)
122 so
->rb_mrt
[i
].control
|=
123 A3XX_RB_MRT_CONTROL_READ_DEST_ENABLE
|
124 A3XX_RB_MRT_CONTROL_BLEND
|
125 A3XX_RB_MRT_CONTROL_BLEND2
;
128 so
->rb_mrt
[i
].control
|= A3XX_RB_MRT_CONTROL_READ_DEST_ENABLE
;
131 so
->rb_mrt
[i
].control
|= A3XX_RB_MRT_CONTROL_DITHER_MODE(DITHER_ALWAYS
);