1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
5 * Copyright 2010 VMware, Inc. All rights reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
29 #ifndef SP_TEX_SAMPLE_H
30 #define SP_TEX_SAMPLE_H
33 #include "tgsi/tgsi_exec.h"
36 struct sp_sampler_view
;
39 typedef void (*wrap_nearest_func
)(float s
,
44 typedef void (*wrap_linear_func
)(float s
,
51 typedef float (*compute_lambda_func
)(const struct sp_sampler_view
*sp_sview
,
52 const float s
[TGSI_QUAD_SIZE
],
53 const float t
[TGSI_QUAD_SIZE
],
54 const float p
[TGSI_QUAD_SIZE
]);
56 struct img_filter_args
{
67 typedef void (*img_filter_func
)(struct sp_sampler_view
*sp_sview
,
68 struct sp_sampler
*sp_samp
,
69 const struct img_filter_args
*args
,
73 enum tgsi_sampler_control control
;
77 typedef void (*mip_filter_func
)(struct sp_sampler_view
*sp_sview
,
78 struct sp_sampler
*sp_samp
,
79 img_filter_func min_filter
,
80 img_filter_func mag_filter
,
81 const float s
[TGSI_QUAD_SIZE
],
82 const float t
[TGSI_QUAD_SIZE
],
83 const float p
[TGSI_QUAD_SIZE
],
84 const float c0
[TGSI_QUAD_SIZE
],
85 const float lod
[TGSI_QUAD_SIZE
],
86 const struct filter_args
*args
,
87 float rgba
[TGSI_NUM_CHANNELS
][TGSI_QUAD_SIZE
]);
90 typedef void (*filter_func
)(struct sp_sampler_view
*sp_sview
,
91 struct sp_sampler
*sp_samp
,
92 const float s
[TGSI_QUAD_SIZE
],
93 const float t
[TGSI_QUAD_SIZE
],
94 const float p
[TGSI_QUAD_SIZE
],
95 const float c0
[TGSI_QUAD_SIZE
],
96 const float lod
[TGSI_QUAD_SIZE
],
97 const struct filter_args
*args
,
98 float rgba
[TGSI_NUM_CHANNELS
][TGSI_QUAD_SIZE
]);
101 typedef void (*fetch_func
)(struct sp_sampler_view
*sp_sview
,
102 const int i
[TGSI_QUAD_SIZE
],
103 const int j
[TGSI_QUAD_SIZE
], const int k
[TGSI_QUAD_SIZE
],
104 const int lod
[TGSI_QUAD_SIZE
], const int8_t offset
[3],
105 float rgba
[TGSI_NUM_CHANNELS
][TGSI_QUAD_SIZE
]);
108 struct sp_sampler_view
110 struct pipe_sampler_view base
;
112 /* For sp_get_samples_2d_linear_POT:
117 boolean need_swizzle
;
120 filter_func get_samples
;
122 /* this is just abusing the sampler_view object as local storage */
123 unsigned faces
[TGSI_QUAD_SIZE
];
125 /* these are different per shader type */
126 struct softpipe_tex_tile_cache
*cache
;
127 compute_lambda_func compute_lambda
;
131 struct sp_filter_funcs
{
132 mip_filter_func filter
;
136 struct pipe_sampler_state base
;
138 boolean min_mag_equal_repeat_linear
;
139 boolean min_mag_equal
;
140 unsigned min_img_filter
;
142 wrap_nearest_func nearest_texcoord_s
;
143 wrap_nearest_func nearest_texcoord_t
;
144 wrap_nearest_func nearest_texcoord_p
;
146 wrap_linear_func linear_texcoord_s
;
147 wrap_linear_func linear_texcoord_t
;
148 wrap_linear_func linear_texcoord_p
;
150 const struct sp_filter_funcs
*filter_funcs
;
155 * Subclass of tgsi_sampler
157 struct sp_tgsi_sampler
159 struct tgsi_sampler base
; /**< base class */
160 struct sp_sampler
*sp_sampler
[PIPE_MAX_SAMPLERS
];
161 struct sp_sampler_view sp_sview
[PIPE_MAX_SHADER_SAMPLER_VIEWS
];
166 softpipe_get_lambda_func(const struct pipe_sampler_view
*view
, unsigned shader
);
170 softpipe_create_sampler_state(struct pipe_context
*pipe
,
171 const struct pipe_sampler_state
*sampler
);
174 struct pipe_sampler_view
*
175 softpipe_create_sampler_view(struct pipe_context
*pipe
,
176 struct pipe_resource
*resource
,
177 const struct pipe_sampler_view
*templ
);
180 struct sp_tgsi_sampler
*
181 sp_create_tgsi_sampler(void);
184 #endif /* SP_TEX_SAMPLE_H */