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
176
177
178
|
/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012-2013 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 "util/u_inlines.h"
#include "fd2_texture.h"
#include "fd2_util.h"
static enum sq_tex_clamp
tex_clamp(unsigned wrap)
{
switch (wrap) {
case PIPE_TEX_WRAP_REPEAT:
return SQ_TEX_WRAP;
case PIPE_TEX_WRAP_CLAMP:
return SQ_TEX_CLAMP_HALF_BORDER;
case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
return SQ_TEX_CLAMP_LAST_TEXEL;
case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
return SQ_TEX_CLAMP_BORDER;
case PIPE_TEX_WRAP_MIRROR_REPEAT:
return SQ_TEX_MIRROR;
case PIPE_TEX_WRAP_MIRROR_CLAMP:
return SQ_TEX_MIRROR_ONCE_HALF_BORDER;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
return SQ_TEX_MIRROR_ONCE_LAST_TEXEL;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
return SQ_TEX_MIRROR_ONCE_BORDER;
default:
DBG("invalid wrap: %u", wrap);
return 0;
}
}
static enum sq_tex_filter
tex_filter(unsigned filter)
{
switch (filter) {
case PIPE_TEX_FILTER_NEAREST:
return SQ_TEX_FILTER_POINT;
case PIPE_TEX_FILTER_LINEAR:
return SQ_TEX_FILTER_BILINEAR;
default:
DBG("invalid filter: %u", filter);
return 0;
}
}
static void *
fd2_sampler_state_create(struct pipe_context *pctx,
const struct pipe_sampler_state *cso)
{
struct fd2_sampler_stateobj *so = CALLOC_STRUCT(fd2_sampler_stateobj);
if (!so)
return NULL;
so->base = *cso;
/* SQ_TEX0_PITCH() must be OR'd in later when we know the bound texture: */
so->tex0 =
A2XX_SQ_TEX_0_CLAMP_X(tex_clamp(cso->wrap_s)) |
A2XX_SQ_TEX_0_CLAMP_Y(tex_clamp(cso->wrap_t)) |
A2XX_SQ_TEX_0_CLAMP_Z(tex_clamp(cso->wrap_r));
so->tex3 =
A2XX_SQ_TEX_3_XY_MAG_FILTER(tex_filter(cso->mag_img_filter)) |
A2XX_SQ_TEX_3_XY_MIN_FILTER(tex_filter(cso->min_img_filter));
so->tex4 = 0x00000000; /* ??? */
so->tex5 = 0x00000200; /* ??? */
return so;
}
static void
fd2_sampler_states_bind(struct pipe_context *pctx,
unsigned shader, unsigned start,
unsigned nr, void **hwcso)
{
if (shader == PIPE_SHADER_FRAGMENT) {
struct fd_context *ctx = fd_context(pctx);
/* on a2xx, since there is a flat address space for textures/samplers,
* a change in # of fragment textures/samplers will trigger patching and
* re-emitting the vertex shader:
*/
if (nr != ctx->fragtex.num_samplers)
ctx->dirty |= FD_DIRTY_TEXSTATE;
}
fd_sampler_states_bind(pctx, shader, start, nr, hwcso);
}
static struct pipe_sampler_view *
fd2_sampler_view_create(struct pipe_context *pctx, struct pipe_resource *prsc,
const struct pipe_sampler_view *cso)
{
struct fd2_pipe_sampler_view *so = CALLOC_STRUCT(fd2_pipe_sampler_view);
struct fd_resource *rsc = fd_resource(prsc);
if (!so)
return NULL;
so->base = *cso;
pipe_reference(NULL, &prsc->reference);
so->base.texture = prsc;
so->base.reference.count = 1;
so->base.context = pctx;
so->fmt = fd2_pipe2surface(cso->format);
so->tex0 = A2XX_SQ_TEX_0_PITCH(rsc->slices[0].pitch);
so->tex2 =
A2XX_SQ_TEX_2_HEIGHT(prsc->height0 - 1) |
A2XX_SQ_TEX_2_WIDTH(prsc->width0 - 1);
so->tex3 = fd2_tex_swiz(cso->format, cso->swizzle_r, cso->swizzle_g,
cso->swizzle_b, cso->swizzle_a);
return &so->base;
}
/* map gallium sampler-id to hw const-idx.. adreno uses a flat address
* space of samplers (const-idx), so we need to map the gallium sampler-id
* which is per-shader to a global const-idx space.
*
* Fragment shader sampler maps directly to const-idx, and vertex shader
* is offset by the # of fragment shader samplers. If the # of fragment
* shader samplers changes, this shifts the vertex shader indexes.
*
* TODO maybe we can do frag shader 0..N and vert shader N..0 to avoid
* this??
*/
unsigned
fd2_get_const_idx(struct fd_context *ctx, struct fd_texture_stateobj *tex,
unsigned samp_id)
{
if (tex == &ctx->fragtex)
return samp_id;
return samp_id + ctx->fragtex.num_samplers;
}
void
fd2_texture_init(struct pipe_context *pctx)
{
pctx->create_sampler_state = fd2_sampler_state_create;
pctx->bind_sampler_states = fd2_sampler_states_bind;
pctx->create_sampler_view = fd2_sampler_view_create;
pctx->set_sampler_views = fd_set_sampler_views;
}
|
