2 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * Rob Clark <robclark@freedesktop.org>
27 #include "pipe/p_state.h"
28 #include "util/u_blend.h"
29 #include "util/u_dual_blend.h"
30 #include "util/u_string.h"
31 #include "util/u_memory.h"
33 #include "fd3_blend.h"
34 #include "fd3_context.h"
35 #include "fd3_format.h"
38 static enum a3xx_rb_blend_opcode
39 blend_func(unsigned func
)
43 return BLEND_DST_PLUS_SRC
;
45 return BLEND_MIN_DST_SRC
;
47 return BLEND_MAX_DST_SRC
;
48 case PIPE_BLEND_SUBTRACT
:
49 return BLEND_SRC_MINUS_DST
;
50 case PIPE_BLEND_REVERSE_SUBTRACT
:
51 return BLEND_DST_MINUS_SRC
;
53 DBG("invalid blend func: %x", func
);
59 fd3_blend_state_create(struct pipe_context
*pctx
,
60 const struct pipe_blend_state
*cso
)
62 struct fd3_blend_stateobj
*so
;
63 enum a3xx_rop_code rop
= ROP_COPY
;
64 bool reads_dest
= false;
67 if (cso
->logicop_enable
) {
68 rop
= cso
->logicop_func
; /* maps 1:1 */
70 switch (cso
->logicop_func
) {
71 case PIPE_LOGICOP_NOR
:
72 case PIPE_LOGICOP_AND_INVERTED
:
73 case PIPE_LOGICOP_AND_REVERSE
:
74 case PIPE_LOGICOP_INVERT
:
75 case PIPE_LOGICOP_XOR
:
76 case PIPE_LOGICOP_NAND
:
77 case PIPE_LOGICOP_AND
:
78 case PIPE_LOGICOP_EQUIV
:
79 case PIPE_LOGICOP_NOOP
:
80 case PIPE_LOGICOP_OR_INVERTED
:
81 case PIPE_LOGICOP_OR_REVERSE
:
88 so
= CALLOC_STRUCT(fd3_blend_stateobj
);
94 for (i
= 0; i
< ARRAY_SIZE(so
->rb_mrt
); i
++) {
95 const struct pipe_rt_blend_state
*rt
;
96 if (cso
->independent_blend_enable
)
101 so
->rb_mrt
[i
].blend_control
=
102 A3XX_RB_MRT_BLEND_CONTROL_RGB_SRC_FACTOR(fd_blend_factor(rt
->rgb_src_factor
)) |
103 A3XX_RB_MRT_BLEND_CONTROL_RGB_BLEND_OPCODE(blend_func(rt
->rgb_func
)) |
104 A3XX_RB_MRT_BLEND_CONTROL_RGB_DEST_FACTOR(fd_blend_factor(rt
->rgb_dst_factor
)) |
105 A3XX_RB_MRT_BLEND_CONTROL_ALPHA_SRC_FACTOR(fd_blend_factor(rt
->alpha_src_factor
)) |
106 A3XX_RB_MRT_BLEND_CONTROL_ALPHA_BLEND_OPCODE(blend_func(rt
->alpha_func
)) |
107 A3XX_RB_MRT_BLEND_CONTROL_ALPHA_DEST_FACTOR(fd_blend_factor(rt
->alpha_dst_factor
));
109 so
->rb_mrt
[i
].control
=
110 A3XX_RB_MRT_CONTROL_ROP_CODE(rop
) |
111 A3XX_RB_MRT_CONTROL_COMPONENT_ENABLE(rt
->colormask
);
113 if (rt
->blend_enable
)
114 so
->rb_mrt
[i
].control
|=
115 A3XX_RB_MRT_CONTROL_READ_DEST_ENABLE
|
116 A3XX_RB_MRT_CONTROL_BLEND
|
117 A3XX_RB_MRT_CONTROL_BLEND2
;
120 so
->rb_mrt
[i
].control
|= A3XX_RB_MRT_CONTROL_READ_DEST_ENABLE
;
123 so
->rb_mrt
[i
].control
|= A3XX_RB_MRT_CONTROL_DITHER_MODE(DITHER_ALWAYS
);
126 if (cso
->rt
[0].blend_enable
&& util_blend_state_is_dual(cso
, 0))
127 so
->rb_render_control
= A3XX_RB_RENDER_CONTROL_DUAL_COLOR_IN_ENABLE
;