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
179
180
|
/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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:
* Keith Whitwell <keith@tungstengraphics.com>
* Brian Paul
*/
#include "st_context.h"
#include "st_cache.h"
#include "st_atom.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
/**
* Convert GLenum texcoord wrap tokens to pipe tokens.
*/
static GLuint
gl_wrap_to_sp(GLenum wrap)
{
switch (wrap) {
case GL_REPEAT:
return PIPE_TEX_WRAP_REPEAT;
case GL_CLAMP:
return PIPE_TEX_WRAP_CLAMP;
case GL_CLAMP_TO_EDGE:
return PIPE_TEX_WRAP_CLAMP_TO_EDGE;
case GL_CLAMP_TO_BORDER:
return PIPE_TEX_WRAP_CLAMP_TO_BORDER;
case GL_MIRRORED_REPEAT:
return PIPE_TEX_WRAP_MIRROR_REPEAT;
case GL_MIRROR_CLAMP_EXT:
return PIPE_TEX_WRAP_MIRROR_CLAMP;
case GL_MIRROR_CLAMP_TO_EDGE_EXT:
return PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE;
case GL_MIRROR_CLAMP_TO_BORDER_EXT:
return PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER;
default:
abort();
return 0;
}
}
static GLuint
gl_filter_to_mip_filter(GLenum filter)
{
switch (filter) {
case GL_NEAREST:
case GL_LINEAR:
return PIPE_TEX_MIPFILTER_NONE;
case GL_NEAREST_MIPMAP_NEAREST:
case GL_LINEAR_MIPMAP_NEAREST:
return PIPE_TEX_MIPFILTER_NEAREST;
case GL_NEAREST_MIPMAP_LINEAR:
case GL_LINEAR_MIPMAP_LINEAR:
return PIPE_TEX_MIPFILTER_LINEAR;
default:
assert(0);
return PIPE_TEX_MIPFILTER_NONE;
}
}
static GLuint
gl_filter_to_img_filter(GLenum filter)
{
switch (filter) {
case GL_NEAREST:
case GL_NEAREST_MIPMAP_NEAREST:
case GL_NEAREST_MIPMAP_LINEAR:
return PIPE_TEX_FILTER_NEAREST;
case GL_LINEAR:
case GL_LINEAR_MIPMAP_NEAREST:
case GL_LINEAR_MIPMAP_LINEAR:
return PIPE_TEX_FILTER_LINEAR;
default:
assert(0);
return PIPE_TEX_FILTER_NEAREST;
}
}
static void
update_samplers(struct st_context *st)
{
GLuint u;
for (u = 0; u < st->ctx->Const.MaxTextureImageUnits; u++) {
const struct gl_texture_object *texobj
= st->ctx->Texture.Unit[u]._Current;
struct pipe_sampler_state sampler;
const struct cso_sampler *cso;
memset(&sampler, 0, sizeof(sampler));
if (texobj) {
sampler.wrap_s = gl_wrap_to_sp(texobj->WrapS);
sampler.wrap_t = gl_wrap_to_sp(texobj->WrapT);
sampler.wrap_r = gl_wrap_to_sp(texobj->WrapR);
sampler.min_img_filter = gl_filter_to_img_filter(texobj->MinFilter);
sampler.min_mip_filter = gl_filter_to_mip_filter(texobj->MinFilter);
sampler.mag_img_filter = gl_filter_to_img_filter(texobj->MagFilter);
sampler.lod_bias = st->ctx->Texture.Unit[u].LodBias;
#if 1
sampler.min_lod = texobj->MinLod;
sampler.max_lod = texobj->MaxLod;
#else
/* min/max lod should really be as follows (untested).
* Also, calculate_first_last_level() needs to be overhauled
* since today's hardware had real support for LOD clamping.
*/
sampler.min_lod = MAX2(texobj->BaseLevel, texobj->MinLod);
sampler.max_lod = MIN2(texobj->MaxLevel, texobj->MaxLod);
#endif
sampler.max_anisotropy = texobj->MaxAnisotropy;
/* XXX more sampler state here */
}
cso = st_cached_sampler_state(st, &sampler);
if (cso != st->state.sampler[u]) {
/* state has changed */
st->state.sampler[u] = cso;
st->pipe->bind_sampler_state(st->pipe, u, cso->data);
}
}
}
const struct st_tracked_state st_update_sampler = {
.name = "st_update_sampler",
.dirty = {
.mesa = _NEW_TEXTURE,
.st = 0,
},
.update = update_samplers
};
|
