1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
4 * Copyright (C) 2012 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_string.h"
31 #include "util/u_memory.h"
32 #include "util/u_inlines.h"
34 #include "freedreno_texture.h"
35 #include "freedreno_context.h"
36 #include "freedreno_util.h"
39 fd_sampler_state_delete(struct pipe_context
*pctx
, void *hwcso
)
45 fd_sampler_view_destroy(struct pipe_context
*pctx
,
46 struct pipe_sampler_view
*view
)
48 pipe_resource_reference(&view
->texture
, NULL
);
52 static void bind_sampler_states(struct fd_texture_stateobj
*tex
,
53 unsigned nr
, void **hwcso
)
58 for (i
= 0; i
< nr
; i
++) {
61 tex
->samplers
[i
] = hwcso
[i
];
62 tex
->dirty_samplers
|= (1 << i
);
65 for (; i
< tex
->num_samplers
; i
++) {
66 tex
->samplers
[i
] = NULL
;
67 tex
->dirty_samplers
|= (1 << i
);
70 tex
->num_samplers
= new_nr
;
73 static void set_sampler_views(struct fd_texture_stateobj
*tex
,
74 unsigned nr
, struct pipe_sampler_view
**views
)
79 for (i
= 0; i
< nr
; i
++) {
82 pipe_sampler_view_reference(&tex
->textures
[i
], views
[i
]);
83 tex
->dirty_samplers
|= (1 << i
);
86 for (; i
< tex
->num_textures
; i
++) {
87 pipe_sampler_view_reference(&tex
->textures
[i
], NULL
);
88 tex
->dirty_samplers
|= (1 << i
);
91 tex
->num_textures
= new_nr
;
95 fd_sampler_states_bind(struct pipe_context
*pctx
,
96 unsigned shader
, unsigned start
,
97 unsigned nr
, void **hwcso
)
99 struct fd_context
*ctx
= fd_context(pctx
);
103 if (shader
== PIPE_SHADER_FRAGMENT
) {
104 bind_sampler_states(&ctx
->fragtex
, nr
, hwcso
);
105 ctx
->dirty
|= FD_DIRTY_FRAGTEX
;
107 else if (shader
== PIPE_SHADER_VERTEX
) {
108 bind_sampler_states(&ctx
->verttex
, nr
, hwcso
);
109 ctx
->dirty
|= FD_DIRTY_VERTTEX
;
114 fd_set_sampler_views(struct pipe_context
*pctx
, unsigned shader
,
115 unsigned start
, unsigned nr
,
116 struct pipe_sampler_view
**views
)
118 struct fd_context
*ctx
= fd_context(pctx
);
123 case PIPE_SHADER_FRAGMENT
:
124 /* on a2xx, since there is a flat address space for textures/samplers,
125 * a change in # of fragment textures/samplers will trigger patching
126 * and re-emitting the vertex shader:
128 * (note: later gen's ignore FD_DIRTY_TEXSTATE so fine to set it)
130 if (nr
!= ctx
->fragtex
.num_textures
)
131 ctx
->dirty
|= FD_DIRTY_TEXSTATE
;
133 set_sampler_views(&ctx
->fragtex
, nr
, views
);
134 ctx
->dirty
|= FD_DIRTY_FRAGTEX
;
136 case PIPE_SHADER_VERTEX
:
137 set_sampler_views(&ctx
->verttex
, nr
, views
);
138 ctx
->dirty
|= FD_DIRTY_VERTTEX
;
146 fd_texture_init(struct pipe_context
*pctx
)
148 pctx
->delete_sampler_state
= fd_sampler_state_delete
;
150 pctx
->sampler_view_destroy
= fd_sampler_view_destroy
;
153 /* helper for setting up border-color buffer for a3xx/a4xx: */
155 fd_setup_border_colors(struct fd_texture_stateobj
*tex
, void *ptr
,
160 for (i
= 0; i
< tex
->num_samplers
; i
++) {
161 struct pipe_sampler_state
*sampler
= tex
->samplers
[i
];
162 uint16_t *bcolor
= (uint16_t *)((uint8_t *)ptr
+
163 (BORDERCOLOR_SIZE
* offset
) +
164 (BORDERCOLOR_SIZE
* i
));
165 uint32_t *bcolor32
= (uint32_t *)&bcolor
[16];
173 * The border colors need to be swizzled in a particular
174 * format-dependent order. Even though samplers don't know about
175 * formats, we can assume that with a GL state tracker, there's a
176 * 1:1 correspondence between sampler and texture. Take advantage
179 if (i
< tex
->num_textures
&& tex
->textures
[i
]) {
180 const struct util_format_description
*desc
=
181 util_format_description(tex
->textures
[i
]->format
);
182 for (j
= 0; j
< 4; j
++) {
183 if (desc
->swizzle
[j
] >= 4)
186 const struct util_format_channel_description
*chan
=
187 &desc
->channel
[desc
->swizzle
[j
]];
188 if (chan
->pure_integer
) {
189 bcolor32
[desc
->swizzle
[j
] + 4] = sampler
->border_color
.i
[j
];
190 bcolor
[desc
->swizzle
[j
] + 8] = sampler
->border_color
.i
[j
];
192 bcolor32
[desc
->swizzle
[j
]] = fui(sampler
->border_color
.f
[j
]);
193 bcolor
[desc
->swizzle
[j
]] =
194 util_float_to_half(sampler
->border_color
.f
[j
]);